sheetjs/xlsx.mini.js

/*! xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* vim: set ts=2: */
/*exported XLSX */
/*global exports, module, require:false, process:false, Buffer:false, ArrayBuffer:false, DataView:false, Deno:false */
var XLSX = {};
function make_xlsx_lib(XLSX){
XLSX.version = '0.18.4';
var current_codepage = 1200, current_ansi = 1252;

var VALID_ANSI = [ 874, 932, 936, 949, 950, 1250, 1251, 1252, 1253, 1254, 1255, 1256, 1257, 1258, 10000 ];
/* ECMA-376 Part I 18.4.1 charset to codepage mapping */
var CS2CP = ({
0:    1252, /* ANSI */
1:   65001, /* DEFAULT */
2:   65001, /* SYMBOL */
77:  10000, /* MAC */
128:   932, /* SHIFTJIS */
129:   949, /* HANGUL */
130:  1361, /* JOHAB */
134:   936, /* GB2312 */
136:   950, /* CHINESEBIG5 */
161:  1253, /* GREEK */
162:  1254, /* TURKISH */
163:  1258, /* VIETNAMESE */
177:  1255, /* HEBREW */
178:  1256, /* ARABIC */
186:  1257, /* BALTIC */
204:  1251, /* RUSSIAN */
222:   874, /* THAI */
238:  1250, /* EASTEUROPE */
255:  1252, /* OEM */
69:   6969  /* MISC */
});

var set_ansi = function(cp) { if(VALID_ANSI.indexOf(cp) == -1) return; current_ansi = CS2CP[0] = cp; };
function reset_ansi() { set_ansi(1252); }

var set_cp = function(cp) { current_codepage = cp; set_ansi(cp); };
function reset_cp() { set_cp(1200); reset_ansi(); }

function char_codes(data) { var o = []; for(var i = 0, len = data.length; i < len; ++i) o[i] = data.charCodeAt(i); return o; }

function utf16leread(data) {
	var o = [];
	for(var i = 0; i < (data.length>>1); ++i) o[i] = String.fromCharCode(data.charCodeAt(2*i) + (data.charCodeAt(2*i+1)<<8));
	return o.join("");
}
function utf16beread(data) {
	var o = [];
	for(var i = 0; i < (data.length>>1); ++i) o[i] = String.fromCharCode(data.charCodeAt(2*i+1) + (data.charCodeAt(2*i)<<8));
	return o.join("");
}

var debom = function(data) {
	var c1 = data.charCodeAt(0), c2 = data.charCodeAt(1);
	if(c1 == 0xFF && c2 == 0xFE) return utf16leread(data.slice(2));
	if(c1 == 0xFE && c2 == 0xFF) return utf16beread(data.slice(2));
	if(c1 == 0xFEFF) return data.slice(1);
	return data;
};

var _getchar = function _gc1(x) { return String.fromCharCode(x); };
var _getansi = function _ga1(x) { return String.fromCharCode(x); };
var DENSE = null;
var DIF_XL = true;
var Base64 = function() {
  var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
  return {
    encode: function(input) {
      var o = "";
      var c1 = 0, c2 = 0, c3 = 0, e1 = 0, e2 = 0, e3 = 0, e4 = 0;
      for (var i = 0; i < input.length; ) {
        c1 = input.charCodeAt(i++);
        e1 = c1 >> 2;
        c2 = input.charCodeAt(i++);
        e2 = (c1 & 3) << 4 | c2 >> 4;
        c3 = input.charCodeAt(i++);
        e3 = (c2 & 15) << 2 | c3 >> 6;
        e4 = c3 & 63;
        if (isNaN(c2)) {
          e3 = e4 = 64;
        } else if (isNaN(c3)) {
          e4 = 64;
        }
        o += map.charAt(e1) + map.charAt(e2) + map.charAt(e3) + map.charAt(e4);
      }
      return o;
    },
    decode: function(input) {
      var o = "";
      var c1 = 0, c2 = 0, c3 = 0, e1 = 0, e2 = 0, e3 = 0, e4 = 0;
      input = input.replace(/[^\w\+\/\=]/g, "");
      for (var i = 0; i < input.length; ) {
        e1 = map.indexOf(input.charAt(i++));
        e2 = map.indexOf(input.charAt(i++));
        c1 = e1 << 2 | e2 >> 4;
        o += String.fromCharCode(c1);
        e3 = map.indexOf(input.charAt(i++));
        c2 = (e2 & 15) << 4 | e3 >> 2;
        if (e3 !== 64) {
          o += String.fromCharCode(c2);
        }
        e4 = map.indexOf(input.charAt(i++));
        c3 = (e3 & 3) << 6 | e4;
        if (e4 !== 64) {
          o += String.fromCharCode(c3);
        }
      }
      return o;
    }
  };
}();
var has_buf = (typeof Buffer !== 'undefined' && typeof process !== 'undefined' && typeof process.versions !== 'undefined' && !!process.versions.node);

var Buffer_from = function(){};

if(typeof Buffer !== 'undefined') {
	var nbfs = !Buffer.from;
	if(!nbfs) try { Buffer.from("foo", "utf8"); } catch(e) { nbfs = true; }
	Buffer_from = nbfs ? function(buf, enc) { return (enc) ? new Buffer(buf, enc) : new Buffer(buf); } : Buffer.from.bind(Buffer);
	// $FlowIgnore
	if(!Buffer.alloc) Buffer.alloc = function(n) { return new Buffer(n); };
	// $FlowIgnore
	if(!Buffer.allocUnsafe) Buffer.allocUnsafe = function(n) { return new Buffer(n); };
}

function new_raw_buf(len) {
	/* jshint -W056 */
	return has_buf ? Buffer.alloc(len) : typeof Uint8Array != "undefined" ? new Uint8Array(len) : new Array(len);
	/* jshint +W056 */
}

function new_unsafe_buf(len) {
	/* jshint -W056 */
	return has_buf ? Buffer.allocUnsafe(len) : typeof Uint8Array != "undefined" ? new Uint8Array(len) : new Array(len);
	/* jshint +W056 */
}

var s2a = function s2a(s) {
	if(has_buf) return Buffer_from(s, "binary");
	return s.split("").map(function(x){ return x.charCodeAt(0) & 0xff; });
};

function s2ab(s) {
	if(typeof ArrayBuffer === 'undefined') return s2a(s);
	var buf = new ArrayBuffer(s.length), view = new Uint8Array(buf);
	for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
	return buf;
}

function a2s(data) {
	if(Array.isArray(data)) return data.map(function(c) { return String.fromCharCode(c); }).join("");
	var o = []; for(var i = 0; i < data.length; ++i) o[i] = String.fromCharCode(data[i]); return o.join("");
}

function a2u(data) {
	if(typeof Uint8Array === 'undefined') throw new Error("Unsupported");
	return new Uint8Array(data);
}

function ab2a(data) {
	if(typeof ArrayBuffer == 'undefined') throw new Error("Unsupported");
	if(data instanceof ArrayBuffer) return ab2a(new Uint8Array(data));
var o = new Array(data.length);
	for(var i = 0; i < data.length; ++i) o[i] = data[i];
	return o;
}

function utf8decode(content) {
	var out = [], widx = 0, L = content.length + 250;
	var o = new_raw_buf(content.length + 255);
	for(var ridx = 0; ridx < content.length; ++ridx) {
		var c = content.charCodeAt(ridx);
		if(c < 0x80) o[widx++] = c;
		else if(c < 0x800) {
			o[widx++] = (192|((c>>6)&31));
			o[widx++] = (128|(c&63));
		} else if(c >= 0xD800 && c < 0xE000) {
			c = (c&1023)+64;
			var d = content.charCodeAt(++ridx)&1023;
			o[widx++] = (240|((c>>8)&7));
			o[widx++] = (128|((c>>2)&63));
			o[widx++] = (128|((d>>6)&15)|((c&3)<<4));
			o[widx++] = (128|(d&63));
		} else {
			o[widx++] = (224|((c>>12)&15));
			o[widx++] = (128|((c>>6)&63));
			o[widx++] = (128|(c&63));
		}
		if(widx > L) {
			out.push(o.slice(0, widx));
			widx = 0;
			o = new_raw_buf(65535);
			L = 65530;
		}
	}
	out.push(o.slice(0, widx));
	return bconcat(out);
}

var bconcat = function(bufs) {
	if(typeof Uint8Array !== "undefined") {
		var i = 0, maxlen = 0;
		for(i = 0; i < bufs.length; ++i) maxlen += bufs[i].length;
		var o = new Uint8Array(maxlen);
		var len = 0;
		for(i = 0, maxlen = 0; i < bufs.length; maxlen += len, ++i) {
			len = bufs[i].length;
			if(bufs[i] instanceof Uint8Array) o.set(bufs[i], maxlen);
			else if(typeof bufs[i] == "string") { throw "wtf"; }
			else o.set(new Uint8Array(bufs[i]), maxlen);
		}
		return o;
	}
	return [].concat.apply([], bufs.map(function(buf) { return Array.isArray(buf) ? buf : [].slice.call(buf); }));
};

var chr0 = /\u0000/g, chr1 = /[\u0001-\u0006]/g;
/* ssf.js (C) 2013-present SheetJS -- http://sheetjs.com */
/*jshint -W041 */
var SSF = ({});
function make_ssf(SSF){
SSF.version = '0.11.2';
function _strrev(x) { var o = "", i = x.length-1; while(i>=0) o += x.charAt(i--); return o; }
function fill(c,l) { var o = ""; while(o.length < l) o+=c; return o; }
function pad0(v,d){var t=""+v; return t.length>=d?t:fill('0',d-t.length)+t;}
function pad_(v,d){var t=""+v;return t.length>=d?t:fill(' ',d-t.length)+t;}
function rpad_(v,d){var t=""+v; return t.length>=d?t:t+fill(' ',d-t.length);}
function pad0r1(v,d){var t=""+Math.round(v); return t.length>=d?t:fill('0',d-t.length)+t;}
function pad0r2(v,d){var t=""+v; return t.length>=d?t:fill('0',d-t.length)+t;}
var p2_32 = Math.pow(2,32);
function pad0r(v,d){if(v>p2_32||v<-p2_32) return pad0r1(v,d); var i = Math.round(v); return pad0r2(i,d); }
function isgeneral(s, i) { i = i || 0; return s.length >= 7 + i && (s.charCodeAt(i)|32) === 103 && (s.charCodeAt(i+1)|32) === 101 && (s.charCodeAt(i+2)|32) === 110 && (s.charCodeAt(i+3)|32) === 101 && (s.charCodeAt(i+4)|32) === 114 && (s.charCodeAt(i+5)|32) === 97 && (s.charCodeAt(i+6)|32) === 108; }
var days = [
	['Sun', 'Sunday'],
	['Mon', 'Monday'],
	['Tue', 'Tuesday'],
	['Wed', 'Wednesday'],
	['Thu', 'Thursday'],
	['Fri', 'Friday'],
	['Sat', 'Saturday']
];
var months = [
	['J', 'Jan', 'January'],
	['F', 'Feb', 'February'],
	['M', 'Mar', 'March'],
	['A', 'Apr', 'April'],
	['M', 'May', 'May'],
	['J', 'Jun', 'June'],
	['J', 'Jul', 'July'],
	['A', 'Aug', 'August'],
	['S', 'Sep', 'September'],
	['O', 'Oct', 'October'],
	['N', 'Nov', 'November'],
	['D', 'Dec', 'December']
];
function init_table(t) {
	t[0]=  'General';
	t[1]=  '0';
	t[2]=  '0.00';
	t[3]=  '#,##0';
	t[4]=  '#,##0.00';
	t[9]=  '0%';
	t[10]= '0.00%';
	t[11]= '0.00E+00';
	t[12]= '# ?/?';
	t[13]= '# ??/??';
	t[14]= 'm/d/yy';
	t[15]= 'd-mmm-yy';
	t[16]= 'd-mmm';
	t[17]= 'mmm-yy';
	t[18]= 'h:mm AM/PM';
	t[19]= 'h:mm:ss AM/PM';
	t[20]= 'h:mm';
	t[21]= 'h:mm:ss';
	t[22]= 'm/d/yy h:mm';
	t[37]= '#,##0 ;(#,##0)';
	t[38]= '#,##0 ;[Red](#,##0)';
	t[39]= '#,##0.00;(#,##0.00)';
	t[40]= '#,##0.00;[Red](#,##0.00)';
	t[45]= 'mm:ss';
	t[46]= '[h]:mm:ss';
	t[47]= 'mmss.0';
	t[48]= '##0.0E+0';
	t[49]= '@';
	t[56]= '"上午/下午 "hh"時"mm"分"ss"秒 "';
}

var table_fmt = {};
init_table(table_fmt);
/* Defaults determined by systematically testing in Excel 2019 */

/* These formats appear to default to other formats in the table */
var default_map = [];
var defi = 0;

//  5 -> 37 ...  8 -> 40
for(defi = 5; defi <= 8; ++defi) default_map[defi] = 32 + defi;

// 23 ->  0 ... 26 ->  0
for(defi = 23; defi <= 26; ++defi) default_map[defi] = 0;

// 27 -> 14 ... 31 -> 14
for(defi = 27; defi <= 31; ++defi) default_map[defi] = 14;
// 50 -> 14 ... 58 -> 14
for(defi = 50; defi <= 58; ++defi) default_map[defi] = 14;

// 59 ->  1 ... 62 ->  4
for(defi = 59; defi <= 62; ++defi) default_map[defi] = defi - 58;
// 67 ->  9 ... 68 -> 10
for(defi = 67; defi <= 68; ++defi) default_map[defi] = defi - 58;
// 72 -> 14 ... 75 -> 17
for(defi = 72; defi <= 75; ++defi) default_map[defi] = defi - 58;

// 69 -> 12 ... 71 -> 14
for(defi = 67; defi <= 68; ++defi) default_map[defi] = defi - 57;

// 76 -> 20 ... 78 -> 22
for(defi = 76; defi <= 78; ++defi) default_map[defi] = defi - 56;

// 79 -> 45 ... 81 -> 47
for(defi = 79; defi <= 81; ++defi) default_map[defi] = defi - 34;

// 82 ->  0 ... 65536 -> 0 (omitted)

/* These formats technically refer to Accounting formats with no equivalent */
var default_str = {
	//  5 -- Currency,   0 decimal, black negative
	5:  '"$"#,##0_);\\("$"#,##0\\)',
	63: '"$"#,##0_);\\("$"#,##0\\)',

	//  6 -- Currency,   0 decimal, red   negative
	6:  '"$"#,##0_);[Red]\\("$"#,##0\\)',
	64: '"$"#,##0_);[Red]\\("$"#,##0\\)',

	//  7 -- Currency,   2 decimal, black negative
	7:  '"$"#,##0.00_);\\("$"#,##0.00\\)',
	65: '"$"#,##0.00_);\\("$"#,##0.00\\)',

	//  8 -- Currency,   2 decimal, red   negative
	8:  '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
	66: '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',

	// 41 -- Accounting, 0 decimal, No Symbol
	41: '_(* #,##0_);_(* \\(#,##0\\);_(* "-"_);_(@_)',

	// 42 -- Accounting, 0 decimal, $  Symbol
	42: '_("$"* #,##0_);_("$"* \\(#,##0\\);_("$"* "-"_);_(@_)',

	// 43 -- Accounting, 2 decimal, No Symbol
	43: '_(* #,##0.00_);_(* \\(#,##0.00\\);_(* "-"??_);_(@_)',

	// 44 -- Accounting, 2 decimal, $  Symbol
	44: '_("$"* #,##0.00_);_("$"* \\(#,##0.00\\);_("$"* "-"??_);_(@_)'
};

function frac(x, D, mixed) {
	var sgn = x < 0 ? -1 : 1;
	var B = x * sgn;
	var P_2 = 0, P_1 = 1, P = 0;
	var Q_2 = 1, Q_1 = 0, Q = 0;
	var A = Math.floor(B);
	while(Q_1 < D) {
		A = Math.floor(B);
		P = A * P_1 + P_2;
		Q = A * Q_1 + Q_2;
		if((B - A) < 0.00000005) break;
		B = 1 / (B - A);
		P_2 = P_1; P_1 = P;
		Q_2 = Q_1; Q_1 = Q;
	}
	if(Q > D) { if(Q_1 > D) { Q = Q_2; P = P_2; } else { Q = Q_1; P = P_1; } }
	if(!mixed) return [0, sgn * P, Q];
	var q = Math.floor(sgn * P/Q);
	return [q, sgn*P - q*Q, Q];
}
function parse_date_code(v,opts,b2) {
	if(v > 2958465 || v < 0) return null;
	var date = (v|0), time = Math.floor(86400 * (v - date)), dow=0;
	var dout=[];
	var out={D:date, T:time, u:86400*(v-date)-time,y:0,m:0,d:0,H:0,M:0,S:0,q:0};
	if(Math.abs(out.u) < 1e-6) out.u = 0;
	if(opts && opts.date1904) date += 1462;
	if(out.u > 0.9999) {
		out.u = 0;
		if(++time == 86400) { out.T = time = 0; ++date; ++out.D; }
	}
	if(date === 60) {dout = b2 ? [1317,10,29] : [1900,2,29]; dow=3;}
	else if(date === 0) {dout = b2 ? [1317,8,29] : [1900,1,0]; dow=6;}
	else {
		if(date > 60) --date;
		/* 1 = Jan 1 1900 in Gregorian */
		var d = new Date(1900, 0, 1);
		d.setDate(d.getDate() + date - 1);
		dout = [d.getFullYear(), d.getMonth()+1,d.getDate()];
		dow = d.getDay();
		if(date < 60) dow = (dow + 6) % 7;
		if(b2) dow = fix_hijri(d, dout);
	}
	out.y = dout[0]; out.m = dout[1]; out.d = dout[2];
	out.S = time % 60; time = Math.floor(time / 60);
	out.M = time % 60; time = Math.floor(time / 60);
	out.H = time;
	out.q = dow;
	return out;
}
SSF.parse_date_code = parse_date_code;
var basedate = new Date(1899, 11, 31, 0, 0, 0);
var dnthresh = basedate.getTime();
var base1904 = new Date(1900, 2, 1, 0, 0, 0);
function datenum_local(v, date1904) {
	var epoch = v.getTime();
	if(date1904) epoch -= 1461*24*60*60*1000;
	else if(v >= base1904) epoch += 24*60*60*1000;
	return (epoch - (dnthresh + (v.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000)) / (24 * 60 * 60 * 1000);
}
/* The longest 32-bit integer text is "-4294967296", exactly 11 chars */
function general_fmt_int(v) { return v.toString(10); }
SSF._general_int = general_fmt_int;

/* ECMA-376 18.8.30 numFmt*/
/* Note: `toPrecision` uses standard form when prec > E and E >= -6 */
var general_fmt_num = (function make_general_fmt_num() {
	var trailing_zeroes_and_decimal = /(?:\.0*|(\.\d*[1-9])0+)$/;
	function strip_decimal(o) {
		return (o.indexOf(".") == -1) ? o : o.replace(trailing_zeroes_and_decimal, "$1");
	}

	/* General Exponential always shows 2 digits exp and trims the mantissa */
	var mantissa_zeroes_and_decimal = /(?:\.0*|(\.\d*[1-9])0+)[Ee]/;
	var exp_with_single_digit = /(E[+-])(\d)$/;
	function normalize_exp(o) {
		if(o.indexOf("E") == -1) return o;
		return o.replace(mantissa_zeroes_and_decimal,"$1E").replace(exp_with_single_digit,"$10$2");
	}

	/* exponent >= -9 and <= 9 */
	function small_exp(v) {
		var w = (v<0?12:11);
		var o = strip_decimal(v.toFixed(12)); if(o.length <= w) return o;
		o = v.toPrecision(10); if(o.length <= w) return o;
		return v.toExponential(5);
	}

	/* exponent >= 11 or <= -10 likely exponential */
	function large_exp(v) {
		var o = strip_decimal(v.toFixed(11));
		return (o.length > (v<0?12:11) || o === "0" || o === "-0") ? v.toPrecision(6) : o;
	}

	function general_fmt_num_base(v) {
		var V = Math.floor(Math.log(Math.abs(v))*Math.LOG10E), o;

		if(V >= -4 && V <= -1) o = v.toPrecision(10+V);
		else if(Math.abs(V) <= 9) o = small_exp(v);
		else if(V === 10) o = v.toFixed(10).substr(0,12);
		else o = large_exp(v);

		return strip_decimal(normalize_exp(o.toUpperCase()));
	}

	return general_fmt_num_base;
})();
SSF._general_num = general_fmt_num;

/*
	"General" rules:
	- text is passed through ("@")
	- booleans are rendered as TRUE/FALSE
	- "up to 11 characters" displayed for numbers
	- Default date format (code 14) used for Dates

	TODO: technically the display depends on the width of the cell
*/
function general_fmt(v, opts) {
	switch(typeof v) {
		case 'string': return v;
		case 'boolean': return v ? "TRUE" : "FALSE";
		case 'number': return (v|0) === v ? v.toString(10) : general_fmt_num(v);
		case 'undefined': return "";
		case 'object':
			if(v == null) return "";
			if(v instanceof Date) return format(14, datenum_local(v, opts && opts.date1904), opts);
	}
	throw new Error("unsupported value in General format: " + v);
}
SSF._general = general_fmt;
function fix_hijri(date, o) {
  /* TODO: properly adjust y/m/d and  */
  o[0] -= 581;
  var dow = date.getDay();
  if(date < 60) dow = (dow + 6) % 7;
  return dow;
}
//var THAI_DIGITS = "\u0E50\u0E51\u0E52\u0E53\u0E54\u0E55\u0E56\u0E57\u0E58\u0E59".split("");
/*jshint -W086 */
function write_date(type, fmt, val, ss0) {
	var o="", ss=0, tt=0, y = val.y, out, outl = 0;
	switch(type) {
		case 98: /* 'b' buddhist year */
			y = val.y + 543;
			/* falls through */
		case 121: /* 'y' year */
		switch(fmt.length) {
			case 1: case 2: out = y % 100; outl = 2; break;
			default: out = y % 10000; outl = 4; break;
		} break;
		case 109: /* 'm' month */
		switch(fmt.length) {
			case 1: case 2: out = val.m; outl = fmt.length; break;
			case 3: return months[val.m-1][1];
			case 5: return months[val.m-1][0];
			default: return months[val.m-1][2];
		} break;
		case 100: /* 'd' day */
		switch(fmt.length) {
			case 1: case 2: out = val.d; outl = fmt.length; break;
			case 3: return days[val.q][0];
			default: return days[val.q][1];
		} break;
		case 104: /* 'h' 12-hour */
		switch(fmt.length) {
			case 1: case 2: out = 1+(val.H+11)%12; outl = fmt.length; break;
			default: throw 'bad hour format: ' + fmt;
		} break;
		case 72: /* 'H' 24-hour */
		switch(fmt.length) {
			case 1: case 2: out = val.H; outl = fmt.length; break;
			default: throw 'bad hour format: ' + fmt;
		} break;
		case 77: /* 'M' minutes */
		switch(fmt.length) {
			case 1: case 2: out = val.M; outl = fmt.length; break;
			default: throw 'bad minute format: ' + fmt;
		} break;
		case 115: /* 's' seconds */
			if(fmt != 's' && fmt != 'ss' && fmt != '.0' && fmt != '.00' && fmt != '.000') throw 'bad second format: ' + fmt;
			if(val.u === 0 && (fmt == "s" || fmt == "ss")) return pad0(val.S, fmt.length);
if(ss0 >= 2) tt = ss0 === 3 ? 1000 : 100;
			else tt = ss0 === 1 ? 10 : 1;
			ss = Math.round((tt)*(val.S + val.u));
			if(ss >= 60*tt) ss = 0;
			if(fmt === 's') return ss === 0 ? "0" : ""+ss/tt;
			o = pad0(ss,2 + ss0);
			if(fmt === 'ss') return o.substr(0,2);
			return "." + o.substr(2,fmt.length-1);
		case 90: /* 'Z' absolute time */
		switch(fmt) {
			case '[h]': case '[hh]': out = val.D*24+val.H; break;
			case '[m]': case '[mm]': out = (val.D*24+val.H)*60+val.M; break;
			case '[s]': case '[ss]': out = ((val.D*24+val.H)*60+val.M)*60+Math.round(val.S+val.u); break;
			default: throw 'bad abstime format: ' + fmt;
		} outl = fmt.length === 3 ? 1 : 2; break;
		case 101: /* 'e' era */
			out = y; outl = 1; break;
	}
	var outstr = outl > 0 ? pad0(out, outl) : "";
	return outstr;
}
/*jshint +W086 */
function commaify(s) {
	var w = 3;
	if(s.length <= w) return s;
	var j = (s.length % w), o = s.substr(0,j);
	for(; j!=s.length; j+=w) o+=(o.length > 0 ? "," : "") + s.substr(j,w);
	return o;
}
var write_num = (function make_write_num(){
var pct1 = /%/g;
function write_num_pct(type, fmt, val){
	var sfmt = fmt.replace(pct1,""), mul = fmt.length - sfmt.length;
	return write_num(type, sfmt, val * Math.pow(10,2*mul)) + fill("%",mul);
}
function write_num_cm(type, fmt, val){
	var idx = fmt.length - 1;
	while(fmt.charCodeAt(idx-1) === 44) --idx;
	return write_num(type, fmt.substr(0,idx), val / Math.pow(10,3*(fmt.length-idx)));
}
function write_num_exp(fmt, val){
	var o;
	var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
	if(fmt.match(/^#+0.0E\+0$/)) {
		if(val == 0) return "0.0E+0";
		else if(val < 0) return "-" + write_num_exp(fmt, -val);
		var period = fmt.indexOf("."); if(period === -1) period=fmt.indexOf('E');
		var ee = Math.floor(Math.log(val)*Math.LOG10E)%period;
		if(ee < 0) ee += period;
		o = (val/Math.pow(10,ee)).toPrecision(idx+1+(period+ee)%period);
		if(o.indexOf("e") === -1) {
			var fakee = Math.floor(Math.log(val)*Math.LOG10E);
			if(o.indexOf(".") === -1) o = o.charAt(0) + "." + o.substr(1) + "E+" + (fakee - o.length+ee);
			else o += "E+" + (fakee - ee);
			while(o.substr(0,2) === "0.") {
				o = o.charAt(0) + o.substr(2,period) + "." + o.substr(2+period);
				o = o.replace(/^0+([1-9])/,"$1").replace(/^0+\./,"0.");
			}
			o = o.replace(/\+-/,"-");
		}
		o = o.replace(/^([+-]?)(\d*)\.(\d*)[Ee]/,function($$,$1,$2,$3) { return $1 + $2 + $3.substr(0,(period+ee)%period) + "." + $3.substr(ee) + "E"; });
	} else o = val.toExponential(idx);
	if(fmt.match(/E\+00$/) && o.match(/e[+-]\d$/)) o = o.substr(0,o.length-1) + "0" + o.charAt(o.length-1);
	if(fmt.match(/E\-/) && o.match(/e\+/)) o = o.replace(/e\+/,"e");
	return o.replace("e","E");
}
var frac1 = /# (\?+)( ?)\/( ?)(\d+)/;
function write_num_f1(r, aval, sign) {
	var den = parseInt(r[4],10), rr = Math.round(aval * den), base = Math.floor(rr/den);
	var myn = (rr - base*den), myd = den;
	return sign + (base === 0 ? "" : ""+base) + " " + (myn === 0 ? fill(" ", r[1].length + 1 + r[4].length) : pad_(myn,r[1].length) + r[2] + "/" + r[3] + pad0(myd,r[4].length));
}
function write_num_f2(r, aval, sign) {
	return sign + (aval === 0 ? "" : ""+aval) + fill(" ", r[1].length + 2 + r[4].length);
}
var dec1 = /^#*0*\.([0#]+)/;
var closeparen = /\).*[0#]/;
var phone = /\(###\) ###\\?-####/;
function hashq(str) {
	var o = "", cc;
	for(var i = 0; i != str.length; ++i) switch((cc=str.charCodeAt(i))) {
		case 35: break;
		case 63: o+= " "; break;
		case 48: o+= "0"; break;
		default: o+= String.fromCharCode(cc);
	}
	return o;
}
function rnd(val, d) { var dd = Math.pow(10,d); return ""+(Math.round(val * dd)/dd); }
function dec(val, d) {
	var _frac = val - Math.floor(val), dd = Math.pow(10,d);
	if (d < ('' + Math.round(_frac * dd)).length) return 0;
	return Math.round(_frac * dd);
}
function carry(val, d) {
	if (d < ('' + Math.round((val-Math.floor(val))*Math.pow(10,d))).length) {
		return 1;
	}
	return 0;
}
function flr(val) {
	if(val < 2147483647 && val > -2147483648) return ""+(val >= 0 ? (val|0) : (val-1|0));
	return ""+Math.floor(val);
}
function write_num_flt(type, fmt, val) {
	if(type.charCodeAt(0) === 40 && !fmt.match(closeparen)) {
		var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
		if(val >= 0) return write_num_flt('n', ffmt, val);
		return '(' + write_num_flt('n', ffmt, -val) + ')';
	}
	if(fmt.charCodeAt(fmt.length - 1) === 44) return write_num_cm(type, fmt, val);
	if(fmt.indexOf('%') !== -1) return write_num_pct(type, fmt, val);
	if(fmt.indexOf('E') !== -1) return write_num_exp(fmt, val);
	if(fmt.charCodeAt(0) === 36) return "$"+write_num_flt(type,fmt.substr(fmt.charAt(1)==' '?2:1),val);
	var o;
	var r, ri, ff, aval = Math.abs(val), sign = val < 0 ? "-" : "";
	if(fmt.match(/^00+$/)) return sign + pad0r(aval,fmt.length);
	if(fmt.match(/^[#?]+$/)) {
		o = pad0r(val,0); if(o === "0") o = "";
		return o.length > fmt.length ? o : hashq(fmt.substr(0,fmt.length-o.length)) + o;
	}
	if((r = fmt.match(frac1))) return write_num_f1(r, aval, sign);
	if(fmt.match(/^#+0+$/)) return sign + pad0r(aval,fmt.length - fmt.indexOf("0"));
	if((r = fmt.match(dec1))) {
		o = rnd(val, r[1].length).replace(/^([^\.]+)$/,"$1."+hashq(r[1])).replace(/\.$/,"."+hashq(r[1])).replace(/\.(\d*)$/,function($$, $1) { return "." + $1 + fill("0", hashq(r[1]).length-$1.length); });
		return fmt.indexOf("0.") !== -1 ? o : o.replace(/^0\./,".");
	}
	fmt = fmt.replace(/^#+([0.])/, "$1");
	if((r = fmt.match(/^(0*)\.(#*)$/))) {
		return sign + rnd(aval, r[2].length).replace(/\.(\d*[1-9])0*$/,".$1").replace(/^(-?\d*)$/,"$1.").replace(/^0\./,r[1].length?"0.":".");
	}
	if((r = fmt.match(/^#{1,3},##0(\.?)$/))) return sign + commaify(pad0r(aval,0));
	if((r = fmt.match(/^#,##0\.([#0]*0)$/))) {
		return val < 0 ? "-" + write_num_flt(type, fmt, -val) : commaify(""+(Math.floor(val) + carry(val, r[1].length))) + "." + pad0(dec(val, r[1].length),r[1].length);
	}
	if((r = fmt.match(/^#,#*,#0/))) return write_num_flt(type,fmt.replace(/^#,#*,/,""),val);
	if((r = fmt.match(/^([0#]+)(\\?-([0#]+))+$/))) {
		o = _strrev(write_num_flt(type, fmt.replace(/[\\-]/g,""), val));
		ri = 0;
		return _strrev(_strrev(fmt.replace(/\\/g,"")).replace(/[0#]/g,function(x){return ri<o.length?o.charAt(ri++):x==='0'?'0':"";}));
	}
	if(fmt.match(phone)) {
		o = write_num_flt(type, "##########", val);
		return "(" + o.substr(0,3) + ") " + o.substr(3, 3) + "-" + o.substr(6);
	}
	var oa = "";
	if((r = fmt.match(/^([#0?]+)( ?)\/( ?)([#0?]+)/))) {
		ri = Math.min(r[4].length,7);
		ff = frac(aval, Math.pow(10,ri)-1, false);
		o = "" + sign;
		oa = write_num("n", r[1], ff[1]);
		if(oa.charAt(oa.length-1) == " ") oa = oa.substr(0,oa.length-1) + "0";
		o += oa + r[2] + "/" + r[3];
		oa = rpad_(ff[2],ri);
		if(oa.length < r[4].length) oa = hashq(r[4].substr(r[4].length-oa.length)) + oa;
		o += oa;
		return o;
	}
	if((r = fmt.match(/^# ([#0?]+)( ?)\/( ?)([#0?]+)/))) {
		ri = Math.min(Math.max(r[1].length, r[4].length),7);
		ff = frac(aval, Math.pow(10,ri)-1, true);
		return sign + (ff[0]||(ff[1] ? "" : "0")) + " " + (ff[1] ? pad_(ff[1],ri) + r[2] + "/" + r[3] + rpad_(ff[2],ri): fill(" ", 2*ri+1 + r[2].length + r[3].length));
	}
	if((r = fmt.match(/^[#0?]+$/))) {
		o = pad0r(val, 0);
		if(fmt.length <= o.length) return o;
		return hashq(fmt.substr(0,fmt.length-o.length)) + o;
	}
	if((r = fmt.match(/^([#0?]+)\.([#0]+)$/))) {
		o = "" + val.toFixed(Math.min(r[2].length,10)).replace(/([^0])0+$/,"$1");
		ri = o.indexOf(".");
		var lres = fmt.indexOf(".") - ri, rres = fmt.length - o.length - lres;
		return hashq(fmt.substr(0,lres) + o + fmt.substr(fmt.length-rres));
	}
	if((r = fmt.match(/^00,000\.([#0]*0)$/))) {
		ri = dec(val, r[1].length);
		return val < 0 ? "-" + write_num_flt(type, fmt, -val) : commaify(flr(val)).replace(/^\d,\d{3}$/,"0$&").replace(/^\d*$/,function($$) { return "00," + ($$.length < 3 ? pad0(0,3-$$.length) : "") + $$; }) + "." + pad0(ri,r[1].length);
	}
	switch(fmt) {
		case "###,##0.00": return write_num_flt(type, "#,##0.00", val);
		case "###,###":
		case "##,###":
		case "#,###": var x = commaify(pad0r(aval,0)); return x !== "0" ? sign + x : "";
		case "###,###.00": return write_num_flt(type, "###,##0.00",val).replace(/^0\./,".");
		case "#,###.00": return write_num_flt(type, "#,##0.00",val).replace(/^0\./,".");
		default:
	}
	throw new Error("unsupported format |" + fmt + "|");
}
function write_num_cm2(type, fmt, val){
	var idx = fmt.length - 1;
	while(fmt.charCodeAt(idx-1) === 44) --idx;
	return write_num(type, fmt.substr(0,idx), val / Math.pow(10,3*(fmt.length-idx)));
}
function write_num_pct2(type, fmt, val){
	var sfmt = fmt.replace(pct1,""), mul = fmt.length - sfmt.length;
	return write_num(type, sfmt, val * Math.pow(10,2*mul)) + fill("%",mul);
}
function write_num_exp2(fmt, val){
	var o;
	var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
	if(fmt.match(/^#+0.0E\+0$/)) {
		if(val == 0) return "0.0E+0";
		else if(val < 0) return "-" + write_num_exp2(fmt, -val);
		var period = fmt.indexOf("."); if(period === -1) period=fmt.indexOf('E');
		var ee = Math.floor(Math.log(val)*Math.LOG10E)%period;
		if(ee < 0) ee += period;
		o = (val/Math.pow(10,ee)).toPrecision(idx+1+(period+ee)%period);
		if(!o.match(/[Ee]/)) {
			var fakee = Math.floor(Math.log(val)*Math.LOG10E);
			if(o.indexOf(".") === -1) o = o.charAt(0) + "." + o.substr(1) + "E+" + (fakee - o.length+ee);
			else o += "E+" + (fakee - ee);
			o = o.replace(/\+-/,"-");
		}
		o = o.replace(/^([+-]?)(\d*)\.(\d*)[Ee]/,function($$,$1,$2,$3) { return $1 + $2 + $3.substr(0,(period+ee)%period) + "." + $3.substr(ee) + "E"; });
	} else o = val.toExponential(idx);
	if(fmt.match(/E\+00$/) && o.match(/e[+-]\d$/)) o = o.substr(0,o.length-1) + "0" + o.charAt(o.length-1);
	if(fmt.match(/E\-/) && o.match(/e\+/)) o = o.replace(/e\+/,"e");
	return o.replace("e","E");
}
function write_num_int(type, fmt, val) {
	if(type.charCodeAt(0) === 40 && !fmt.match(closeparen)) {
		var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
		if(val >= 0) return write_num_int('n', ffmt, val);
		return '(' + write_num_int('n', ffmt, -val) + ')';
	}
	if(fmt.charCodeAt(fmt.length - 1) === 44) return write_num_cm2(type, fmt, val);
	if(fmt.indexOf('%') !== -1) return write_num_pct2(type, fmt, val);
	if(fmt.indexOf('E') !== -1) return write_num_exp2(fmt, val);
	if(fmt.charCodeAt(0) === 36) return "$"+write_num_int(type,fmt.substr(fmt.charAt(1)==' '?2:1),val);
	var o;
	var r, ri, ff, aval = Math.abs(val), sign = val < 0 ? "-" : "";
	if(fmt.match(/^00+$/)) return sign + pad0(aval,fmt.length);
	if(fmt.match(/^[#?]+$/)) {
		o = (""+val); if(val === 0) o = "";
		return o.length > fmt.length ? o : hashq(fmt.substr(0,fmt.length-o.length)) + o;
	}
	if((r = fmt.match(frac1))) return write_num_f2(r, aval, sign);
	if(fmt.match(/^#+0+$/)) return sign + pad0(aval,fmt.length - fmt.indexOf("0"));
	if((r = fmt.match(dec1))) {
o = (""+val).replace(/^([^\.]+)$/,"$1."+hashq(r[1])).replace(/\.$/,"."+hashq(r[1]));
		o = o.replace(/\.(\d*)$/,function($$, $1) {
return "." + $1 + fill("0", hashq(r[1]).length-$1.length); });
		return fmt.indexOf("0.") !== -1 ? o : o.replace(/^0\./,".");
	}
	fmt = fmt.replace(/^#+([0.])/, "$1");
	if((r = fmt.match(/^(0*)\.(#*)$/))) {
		return sign + (""+aval).replace(/\.(\d*[1-9])0*$/,".$1").replace(/^(-?\d*)$/,"$1.").replace(/^0\./,r[1].length?"0.":".");
	}
	if((r = fmt.match(/^#{1,3},##0(\.?)$/))) return sign + commaify((""+aval));
	if((r = fmt.match(/^#,##0\.([#0]*0)$/))) {
		return val < 0 ? "-" + write_num_int(type, fmt, -val) : commaify((""+val)) + "." + fill('0',r[1].length);
	}
	if((r = fmt.match(/^#,#*,#0/))) return write_num_int(type,fmt.replace(/^#,#*,/,""),val);
	if((r = fmt.match(/^([0#]+)(\\?-([0#]+))+$/))) {
		o = _strrev(write_num_int(type, fmt.replace(/[\\-]/g,""), val));
		ri = 0;
		return _strrev(_strrev(fmt.replace(/\\/g,"")).replace(/[0#]/g,function(x){return ri<o.length?o.charAt(ri++):x==='0'?'0':"";}));
	}
	if(fmt.match(phone)) {
		o = write_num_int(type, "##########", val);
		return "(" + o.substr(0,3) + ") " + o.substr(3, 3) + "-" + o.substr(6);
	}
	var oa = "";
	if((r = fmt.match(/^([#0?]+)( ?)\/( ?)([#0?]+)/))) {
		ri = Math.min(r[4].length,7);
		ff = frac(aval, Math.pow(10,ri)-1, false);
		o = "" + sign;
		oa = write_num("n", r[1], ff[1]);
		if(oa.charAt(oa.length-1) == " ") oa = oa.substr(0,oa.length-1) + "0";
		o += oa + r[2] + "/" + r[3];
		oa = rpad_(ff[2],ri);
		if(oa.length < r[4].length) oa = hashq(r[4].substr(r[4].length-oa.length)) + oa;
		o += oa;
		return o;
	}
	if((r = fmt.match(/^# ([#0?]+)( ?)\/( ?)([#0?]+)/))) {
		ri = Math.min(Math.max(r[1].length, r[4].length),7);
		ff = frac(aval, Math.pow(10,ri)-1, true);
		return sign + (ff[0]||(ff[1] ? "" : "0")) + " " + (ff[1] ? pad_(ff[1],ri) + r[2] + "/" + r[3] + rpad_(ff[2],ri): fill(" ", 2*ri+1 + r[2].length + r[3].length));
	}
	if((r = fmt.match(/^[#0?]+$/))) {
		o = "" + val;
		if(fmt.length <= o.length) return o;
		return hashq(fmt.substr(0,fmt.length-o.length)) + o;
	}
	if((r = fmt.match(/^([#0]+)\.([#0]+)$/))) {
		o = "" + val.toFixed(Math.min(r[2].length,10)).replace(/([^0])0+$/,"$1");
		ri = o.indexOf(".");
		var lres = fmt.indexOf(".") - ri, rres = fmt.length - o.length - lres;
		return hashq(fmt.substr(0,lres) + o + fmt.substr(fmt.length-rres));
	}
	if((r = fmt.match(/^00,000\.([#0]*0)$/))) {
		return val < 0 ? "-" + write_num_int(type, fmt, -val) : commaify(""+val).replace(/^\d,\d{3}$/,"0$&").replace(/^\d*$/,function($$) { return "00," + ($$.length < 3 ? pad0(0,3-$$.length) : "") + $$; }) + "." + pad0(0,r[1].length);
	}
	switch(fmt) {
		case "###,###":
		case "##,###":
		case "#,###": var x = commaify(""+aval); return x !== "0" ? sign + x : "";
		default:
			if(fmt.match(/\.[0#?]*$/)) return write_num_int(type, fmt.slice(0,fmt.lastIndexOf(".")), val) + hashq(fmt.slice(fmt.lastIndexOf(".")));
	}
	throw new Error("unsupported format |" + fmt + "|");
}
return function write_num(type, fmt, val) {
	return (val|0) === val ? write_num_int(type, fmt, val) : write_num_flt(type, fmt, val);
};})();
function split_fmt(fmt) {
	var out = [];
	var in_str = false/*, cc*/;
	for(var i = 0, j = 0; i < fmt.length; ++i) switch((/*cc=*/fmt.charCodeAt(i))) {
		case 34: /* '"' */
			in_str = !in_str; break;
		case 95: case 42: case 92: /* '_' '*' '\\' */
			++i; break;
		case 59: /* ';' */
			out[out.length] = fmt.substr(j,i-j);
			j = i+1;
	}
	out[out.length] = fmt.substr(j);
	if(in_str === true) throw new Error("Format |" + fmt + "| unterminated string ");
	return out;
}
SSF._split = split_fmt;
var abstime = /\[[HhMmSs\u0E0A\u0E19\u0E17]*\]/;
function fmt_is_date(fmt) {
	var i = 0, /*cc = 0,*/ c = "", o = "";
	while(i < fmt.length) {
		switch((c = fmt.charAt(i))) {
			case 'G': if(isgeneral(fmt, i)) i+= 6; i++; break;
			case '"': for(;(/*cc=*/fmt.charCodeAt(++i)) !== 34 && i < fmt.length;){/*empty*/} ++i; break;
			case '\\': i+=2; break;
			case '_': i+=2; break;
			case '@': ++i; break;
			case 'B': case 'b':
				if(fmt.charAt(i+1) === "1" || fmt.charAt(i+1) === "2") return true;
				/* falls through */
			case 'M': case 'D': case 'Y': case 'H': case 'S': case 'E':
				/* falls through */
			case 'm': case 'd': case 'y': case 'h': case 's': case 'e': case 'g': return true;
			case 'A': case 'a': case '上':
				if(fmt.substr(i, 3).toUpperCase() === "A/P") return true;
				if(fmt.substr(i, 5).toUpperCase() === "AM/PM") return true;
				if(fmt.substr(i, 5).toUpperCase() === "上午/下午") return true;
				++i; break;
			case '[':
				o = c;
				while(fmt.charAt(i++) !== ']' && i < fmt.length) o += fmt.charAt(i);
				if(o.match(abstime)) return true;
				break;
			case '.':
				/* falls through */
			case '0': case '#':
				while(i < fmt.length && ("0#?.,E+-%".indexOf(c=fmt.charAt(++i)) > -1 || (c=='\\' && fmt.charAt(i+1) == "-" && "0#".indexOf(fmt.charAt(i+2))>-1))){/* empty */}
				break;
			case '?': while(fmt.charAt(++i) === c){/* empty */} break;
			case '*': ++i; if(fmt.charAt(i) == ' ' || fmt.charAt(i) == '*') ++i; break;
			case '(': case ')': ++i; break;
			case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
				while(i < fmt.length && "0123456789".indexOf(fmt.charAt(++i)) > -1){/* empty */} break;
			case ' ': ++i; break;
			default: ++i; break;
		}
	}
	return false;
}
SSF.is_date = fmt_is_date;
function eval_fmt(fmt, v, opts, flen) {
	var out = [], o = "", i = 0, c = "", lst='t', dt, j, cc;
	var hr='H';
	/* Tokenize */
	while(i < fmt.length) {
		switch((c = fmt.charAt(i))) {
			case 'G': /* General */
				if(!isgeneral(fmt, i)) throw new Error('unrecognized character ' + c + ' in ' +fmt);
				out[out.length] = {t:'G', v:'General'}; i+=7; break;
			case '"': /* Literal text */
				for(o="";(cc=fmt.charCodeAt(++i)) !== 34 && i < fmt.length;) o += String.fromCharCode(cc);
				out[out.length] = {t:'t', v:o}; ++i; break;
			case '\\': var w = fmt.charAt(++i), t = (w === "(" || w === ")") ? w : 't';
				out[out.length] = {t:t, v:w}; ++i; break;
			case '_': out[out.length] = {t:'t', v:" "}; i+=2; break;
			case '@': /* Text Placeholder */
				out[out.length] = {t:'T', v:v}; ++i; break;
			case 'B': case 'b':
				if(fmt.charAt(i+1) === "1" || fmt.charAt(i+1) === "2") {
					if(dt==null) { dt=parse_date_code(v, opts, fmt.charAt(i+1) === "2"); if(dt==null) return ""; }
					out[out.length] = {t:'X', v:fmt.substr(i,2)}; lst = c; i+=2; break;
				}
				/* falls through */
			case 'M': case 'D': case 'Y': case 'H': case 'S': case 'E':
				c = c.toLowerCase();
				/* falls through */
			case 'm': case 'd': case 'y': case 'h': case 's': case 'e': case 'g':
				if(v < 0) return "";
				if(dt==null) { dt=parse_date_code(v, opts); if(dt==null) return ""; }
				o = c; while(++i < fmt.length && fmt.charAt(i).toLowerCase() === c) o+=c;
				if(c === 'm' && lst.toLowerCase() === 'h') c = 'M';
				if(c === 'h') c = hr;
				out[out.length] = {t:c, v:o}; lst = c; break;
			case 'A': case 'a': case '上':
				var q={t:c, v:c};
				if(dt==null) dt=parse_date_code(v, opts);
				if(fmt.substr(i, 3).toUpperCase() === "A/P") { if(dt!=null) q.v = dt.H >= 12 ? "P" : "A"; q.t = 'T'; hr='h';i+=3;}
				else if(fmt.substr(i,5).toUpperCase() === "AM/PM") { if(dt!=null) q.v = dt.H >= 12 ? "PM" : "AM"; q.t = 'T'; i+=5; hr='h'; }
				else if(fmt.substr(i,5).toUpperCase() === "上午/下午") { if(dt!=null) q.v = dt.H >= 12 ? "下午" : "上午"; q.t = 'T'; i+=5; hr='h'; }
				else { q.t = "t"; ++i; }
				if(dt==null && q.t === 'T') return "";
				out[out.length] = q; lst = c; break;
			case '[':
				o = c;
				while(fmt.charAt(i++) !== ']' && i < fmt.length) o += fmt.charAt(i);
				if(o.slice(-1) !== ']') throw 'unterminated "[" block: |' + o + '|';
				if(o.match(abstime)) {
					if(dt==null) { dt=parse_date_code(v, opts); if(dt==null) return ""; }
					out[out.length] = {t:'Z', v:o.toLowerCase()};
					lst = o.charAt(1);
				} else if(o.indexOf("$") > -1) {
					o = (o.match(/\$([^-\[\]]*)/)||[])[1]||"$";
					if(!fmt_is_date(fmt)) out[out.length] = {t:'t',v:o};
				}
				break;
			/* Numbers */
			case '.':
				if(dt != null) {
					o = c; while(++i < fmt.length && (c=fmt.charAt(i)) === "0") o += c;
					out[out.length] = {t:'s', v:o}; break;
				}
				/* falls through */
			case '0': case '#':
				o = c; while(++i < fmt.length && "0#?.,E+-%".indexOf(c=fmt.charAt(i)) > -1) o += c;
				out[out.length] = {t:'n', v:o}; break;
			case '?':
				o = c; while(fmt.charAt(++i) === c) o+=c;
				out[out.length] = {t:c, v:o}; lst = c; break;
			case '*': ++i; if(fmt.charAt(i) == ' ' || fmt.charAt(i) == '*') ++i; break; // **
			case '(': case ')': out[out.length] = {t:(flen===1?'t':c), v:c}; ++i; break;
			case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
				o = c; while(i < fmt.length && "0123456789".indexOf(fmt.charAt(++i)) > -1) o+=fmt.charAt(i);
				out[out.length] = {t:'D', v:o}; break;
			case ' ': out[out.length] = {t:c, v:c}; ++i; break;
			case '$': out[out.length] = {t:'t', v:'$'}; ++i; break;
			default:
				if(",$-+/():!^&'~{}<>=€acfijklopqrtuvwxzP".indexOf(c) === -1) throw new Error('unrecognized character ' + c + ' in ' + fmt);
				out[out.length] = {t:'t', v:c}; ++i; break;
		}
	}

	/* Scan for date/time parts */
	var bt = 0, ss0 = 0, ssm;
	for(i=out.length-1, lst='t'; i >= 0; --i) {
		switch(out[i].t) {
			case 'h': case 'H': out[i].t = hr; lst='h'; if(bt < 1) bt = 1; break;
			case 's':
				if((ssm=out[i].v.match(/\.0+$/))) ss0=Math.max(ss0,ssm[0].length-1);
				if(bt < 3) bt = 3;
			/* falls through */
			case 'd': case 'y': case 'M': case 'e': lst=out[i].t; break;
			case 'm': if(lst === 's') { out[i].t = 'M'; if(bt < 2) bt = 2; } break;
			case 'X': /*if(out[i].v === "B2");*/
				break;
			case 'Z':
				if(bt < 1 && out[i].v.match(/[Hh]/)) bt = 1;
				if(bt < 2 && out[i].v.match(/[Mm]/)) bt = 2;
				if(bt < 3 && out[i].v.match(/[Ss]/)) bt = 3;
		}
	}
	/* time rounding depends on presence of minute / second / usec fields */
	switch(bt) {
		case 0: break;
		case 1:
if(dt.u >= 0.5) { dt.u = 0; ++dt.S; }
			if(dt.S >=  60) { dt.S = 0; ++dt.M; }
			if(dt.M >=  60) { dt.M = 0; ++dt.H; }
			break;
		case 2:
if(dt.u >= 0.5) { dt.u = 0; ++dt.S; }
			if(dt.S >=  60) { dt.S = 0; ++dt.M; }
			break;
	}

	/* replace fields */
	var nstr = "", jj;
	for(i=0; i < out.length; ++i) {
		switch(out[i].t) {
			case 't': case 'T': case ' ': case 'D': break;
			case 'X': out[i].v = ""; out[i].t = ";"; break;
			case 'd': case 'm': case 'y': case 'h': case 'H': case 'M': case 's': case 'e': case 'b': case 'Z':
out[i].v = write_date(out[i].t.charCodeAt(0), out[i].v, dt, ss0);
				out[i].t = 't'; break;
			case 'n': case '?':
				jj = i+1;
				while(out[jj] != null && (
					(c=out[jj].t) === "?" || c === "D" ||
					((c === " " || c === "t") && out[jj+1] != null && (out[jj+1].t === '?' || out[jj+1].t === "t" && out[jj+1].v === '/')) ||
					(out[i].t === '(' && (c === ' ' || c === 'n' || c === ')')) ||
					(c === 't' && (out[jj].v === '/' || out[jj].v === ' ' && out[jj+1] != null && out[jj+1].t == '?'))
				)) {
					out[i].v += out[jj].v;
					out[jj] = {v:"", t:";"}; ++jj;
				}
				nstr += out[i].v;
				i = jj-1; break;
			case 'G': out[i].t = 't'; out[i].v = general_fmt(v,opts); break;
		}
	}
	var vv = "", myv, ostr;
	if(nstr.length > 0) {
		if(nstr.charCodeAt(0) == 40) /* '(' */ {
			myv = (v<0&&nstr.charCodeAt(0) === 45 ? -v : v);
			ostr = write_num('n', nstr, myv);
		} else {
			myv = (v<0 && flen > 1 ? -v : v);
			ostr = write_num('n', nstr, myv);
			if(myv < 0 && out[0] && out[0].t == 't') {
				ostr = ostr.substr(1);
				out[0].v = "-" + out[0].v;
			}
		}
		jj=ostr.length-1;
		var decpt = out.length;
		for(i=0; i < out.length; ++i) if(out[i] != null && out[i].t != 't' && out[i].v.indexOf(".") > -1) { decpt = i; break; }
		var lasti=out.length;
		if(decpt === out.length && ostr.indexOf("E") === -1) {
			for(i=out.length-1; i>= 0;--i) {
				if(out[i] == null || 'n?'.indexOf(out[i].t) === -1) continue;
				if(jj>=out[i].v.length-1) { jj -= out[i].v.length; out[i].v = ostr.substr(jj+1, out[i].v.length); }
				else if(jj < 0) out[i].v = "";
				else { out[i].v = ostr.substr(0, jj+1); jj = -1; }
				out[i].t = 't';
				lasti = i;
			}
			if(jj>=0 && lasti<out.length) out[lasti].v = ostr.substr(0,jj+1) + out[lasti].v;
		}
		else if(decpt !== out.length && ostr.indexOf("E") === -1) {
			jj = ostr.indexOf(".")-1;
			for(i=decpt; i>= 0; --i) {
				if(out[i] == null || 'n?'.indexOf(out[i].t) === -1) continue;
				j=out[i].v.indexOf(".")>-1&&i===decpt?out[i].v.indexOf(".")-1:out[i].v.length-1;
				vv = out[i].v.substr(j+1);
				for(; j>=0; --j) {
					if(jj>=0 && (out[i].v.charAt(j) === "0" || out[i].v.charAt(j) === "#")) vv = ostr.charAt(jj--) + vv;
				}
				out[i].v = vv;
				out[i].t = 't';
				lasti = i;
			}
			if(jj>=0 && lasti<out.length) out[lasti].v = ostr.substr(0,jj+1) + out[lasti].v;
			jj = ostr.indexOf(".")+1;
			for(i=decpt; i<out.length; ++i) {
				if(out[i] == null || ('n?('.indexOf(out[i].t) === -1 && i !== decpt)) continue;
				j=out[i].v.indexOf(".")>-1&&i===decpt?out[i].v.indexOf(".")+1:0;
				vv = out[i].v.substr(0,j);
				for(; j<out[i].v.length; ++j) {
					if(jj<ostr.length) vv += ostr.charAt(jj++);
				}
				out[i].v = vv;
				out[i].t = 't';
				lasti = i;
			}
		}
	}
	for(i=0; i<out.length; ++i) if(out[i] != null && 'n?'.indexOf(out[i].t)>-1) {
		myv = (flen >1 && v < 0 && i>0 && out[i-1].v === "-" ? -v:v);
		out[i].v = write_num(out[i].t, out[i].v, myv);
		out[i].t = 't';
	}
	var retval = "";
	for(i=0; i !== out.length; ++i) if(out[i] != null) retval += out[i].v;
	return retval;
}
SSF._eval = eval_fmt;
var cfregex = /\[[=<>]/;
var cfregex2 = /\[(=|>[=]?|<[>=]?)(-?\d+(?:\.\d*)?)\]/;
function chkcond(v, rr) {
	if(rr == null) return false;
	var thresh = parseFloat(rr[2]);
	switch(rr[1]) {
		case "=":  if(v == thresh) return true; break;
		case ">":  if(v >  thresh) return true; break;
		case "<":  if(v <  thresh) return true; break;
		case "<>": if(v != thresh) return true; break;
		case ">=": if(v >= thresh) return true; break;
		case "<=": if(v <= thresh) return true; break;
	}
	return false;
}
function choose_fmt(f, v) {
	var fmt = split_fmt(f);
	var l = fmt.length, lat = fmt[l-1].indexOf("@");
	if(l<4 && lat>-1) --l;
	if(fmt.length > 4) throw new Error("cannot find right format for |" + fmt.join("|") + "|");
	if(typeof v !== "number") return [4, fmt.length === 4 || lat>-1?fmt[fmt.length-1]:"@"];
	switch(fmt.length) {
		case 1: fmt = lat>-1 ? ["General", "General", "General", fmt[0]] : [fmt[0], fmt[0], fmt[0], "@"]; break;
		case 2: fmt = lat>-1 ? [fmt[0], fmt[0], fmt[0], fmt[1]] : [fmt[0], fmt[1], fmt[0], "@"]; break;
		case 3: fmt = lat>-1 ? [fmt[0], fmt[1], fmt[0], fmt[2]] : [fmt[0], fmt[1], fmt[2], "@"]; break;
		case 4: break;
	}
	var ff = v > 0 ? fmt[0] : v < 0 ? fmt[1] : fmt[2];
	if(fmt[0].indexOf("[") === -1 && fmt[1].indexOf("[") === -1) return [l, ff];
	if(fmt[0].match(cfregex) != null || fmt[1].match(cfregex) != null) {
		var m1 = fmt[0].match(cfregex2);
		var m2 = fmt[1].match(cfregex2);
		return chkcond(v, m1) ? [l, fmt[0]] : chkcond(v, m2) ? [l, fmt[1]] : [l, fmt[m1 != null && m2 != null ? 2 : 1]];
	}
	return [l, ff];
}
function format(fmt,v,o) {
	if(o == null) o = {};
	var sfmt = "";
	switch(typeof fmt) {
		case "string":
			if(fmt == "m/d/yy" && o.dateNF) sfmt = o.dateNF;
			else sfmt = fmt;
			break;
		case "number":
			if(fmt == 14 && o.dateNF) sfmt = o.dateNF;
			else sfmt = (o.table != null ? (o.table) : table_fmt)[fmt];
			if(sfmt == null) sfmt = (o.table && o.table[default_map[fmt]]) || table_fmt[default_map[fmt]];
			if(sfmt == null) sfmt = default_str[fmt] || "General";
			break;
	}
	if(isgeneral(sfmt,0)) return general_fmt(v, o);
	if(v instanceof Date) v = datenum_local(v, o.date1904);
	var f = choose_fmt(sfmt, v);
	if(isgeneral(f[1])) return general_fmt(v, o);
	if(v === true) v = "TRUE"; else if(v === false) v = "FALSE";
	else if(v === "" || v == null) return "";
	return eval_fmt(f[1], v, o, f[0]);
}
function load_entry(fmt, idx) {
	if(typeof idx != 'number') {
		idx = +idx || -1;
for(var i = 0; i < 0x0188; ++i) {
if(table_fmt[i] == undefined) { if(idx < 0) idx = i; continue; }
			if(table_fmt[i] == fmt) { idx = i; break; }
		}
if(idx < 0) idx = 0x187;
	}
table_fmt[idx] = fmt;
	return idx;
}
SSF.load = load_entry;
SSF._table = table_fmt;
SSF.get_table = function get_table() { return table_fmt; };
SSF.load_table = function load_table(tbl) {
	for(var i=0; i!=0x0188; ++i)
		if(tbl[i] !== undefined) load_entry(tbl[i], i);
};
SSF.init_table = init_table;
SSF.format = format;
}
make_ssf(SSF);
/* map from xlml named formats to SSF TODO: localize */
var XLMLFormatMap/*{[string]:string}*/ = ({
	"General Number": "General",
	"General Date": SSF._table[22],
	"Long Date": "dddd, mmmm dd, yyyy",
	"Medium Date": SSF._table[15],
	"Short Date": SSF._table[14],
	"Long Time": SSF._table[19],
	"Medium Time": SSF._table[18],
	"Short Time": SSF._table[20],
	"Currency": '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
	"Fixed": SSF._table[2],
	"Standard": SSF._table[4],
	"Percent": SSF._table[10],
	"Scientific": SSF._table[11],
	"Yes/No": '"Yes";"Yes";"No";@',
	"True/False": '"True";"True";"False";@',
	"On/Off": '"Yes";"Yes";"No";@'
});

var SSFImplicit/*{[number]:string}*/ = ({
	"5": '"$"#,##0_);\\("$"#,##0\\)',
	"6": '"$"#,##0_);[Red]\\("$"#,##0\\)',
	"7": '"$"#,##0.00_);\\("$"#,##0.00\\)',
	"8": '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
	"23": 'General', "24": 'General', "25": 'General', "26": 'General',
	"27": 'm/d/yy', "28": 'm/d/yy', "29": 'm/d/yy', "30": 'm/d/yy', "31": 'm/d/yy',
	"32": 'h:mm:ss', "33": 'h:mm:ss', "34": 'h:mm:ss', "35": 'h:mm:ss',
	"36": 'm/d/yy',
	"41": '_(* #,##0_);_(* \(#,##0\);_(* "-"_);_(@_)',
	"42": '_("$"* #,##0_);_("$"* \(#,##0\);_("$"* "-"_);_(@_)',
	"43": '_(* #,##0.00_);_(* \(#,##0.00\);_(* "-"??_);_(@_)',
	"44": '_("$"* #,##0.00_);_("$"* \(#,##0.00\);_("$"* "-"??_);_(@_)',
	"50": 'm/d/yy', "51": 'm/d/yy', "52": 'm/d/yy', "53": 'm/d/yy', "54": 'm/d/yy',
	"55": 'm/d/yy', "56": 'm/d/yy', "57": 'm/d/yy', "58": 'm/d/yy',
	"59": '0',
	"60": '0.00',
	"61": '#,##0',
	"62": '#,##0.00',
	"63": '"$"#,##0_);\\("$"#,##0\\)',
	"64": '"$"#,##0_);[Red]\\("$"#,##0\\)',
	"65": '"$"#,##0.00_);\\("$"#,##0.00\\)',
	"66": '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
	"67": '0%',
	"68": '0.00%',
	"69": '# ?/?',
	"70": '# ??/??',
	"71": 'm/d/yy',
	"72": 'm/d/yy',
	"73": 'd-mmm-yy',
	"74": 'd-mmm',
	"75": 'mmm-yy',
	"76": 'h:mm',
	"77": 'h:mm:ss',
	"78": 'm/d/yy h:mm',
	"79": 'mm:ss',
	"80": '[h]:mm:ss',
	"81": 'mmss.0'
});

/* dateNF parse TODO: move to SSF */
var dateNFregex = /[dD]+|[mM]+|[yYeE]+|[Hh]+|[Ss]+/g;
function dateNF_regex(dateNF) {
	var fmt = typeof dateNF == "number" ? SSF._table[dateNF] : dateNF;
	fmt = fmt.replace(dateNFregex, "(\\d+)");
	return new RegExp("^" + fmt + "$");
}
function dateNF_fix(str, dateNF, match) {
	var Y = -1, m = -1, d = -1, H = -1, M = -1, S = -1;
	(dateNF.match(dateNFregex)||[]).forEach(function(n, i) {
		var v = parseInt(match[i+1], 10);
		switch(n.toLowerCase().charAt(0)) {
			case 'y': Y = v; break; case 'd': d = v; break;
			case 'h': H = v; break; case 's': S = v; break;
			case 'm': if(H >= 0) M = v; else m = v; break;
		}
	});
	if(S >= 0 && M == -1 && m >= 0) { M = m; m = -1; }
	var datestr = (("" + (Y>=0?Y: new Date().getFullYear())).slice(-4) + "-" + ("00" + (m>=1?m:1)).slice(-2) + "-" + ("00" + (d>=1?d:1)).slice(-2));
	if(datestr.length == 7) datestr = "0" + datestr;
	if(datestr.length == 8) datestr = "20" + datestr;
	var timestr = (("00" + (H>=0?H:0)).slice(-2) + ":" + ("00" + (M>=0?M:0)).slice(-2) + ":" + ("00" + (S>=0?S:0)).slice(-2));
	if(H == -1 && M == -1 && S == -1) return datestr;
	if(Y == -1 && m == -1 && d == -1) return timestr;
	return datestr + "T" + timestr;
}

/* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* vim: set ts=2: */
/*jshint eqnull:true */
/*exported CFB */
/*global Uint8Array:false, Uint16Array:false */

/* crc32.js (C) 2014-present SheetJS -- http://sheetjs.com */
/* vim: set ts=2: */
/*exported CRC32 */
var CRC32 = (function() {
var CRC32 = {};
CRC32.version = '1.2.0';
/* see perf/crc32table.js */
/*global Int32Array */
function signed_crc_table() {
	var c = 0, table = new Array(256);

	for(var n =0; n != 256; ++n){
		c = n;
		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
		c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
		table[n] = c;
	}

	return typeof Int32Array !== 'undefined' ? new Int32Array(table) : table;
}

var T0 = signed_crc_table();
function slice_by_16_tables(T) {
	var c = 0, v = 0, n = 0, table = typeof Int32Array !== 'undefined' ? new Int32Array(4096) : new Array(4096) ;

	for(n = 0; n != 256; ++n) table[n] = T[n];
	for(n = 0; n != 256; ++n) {
		v = T[n];
		for(c = 256 + n; c < 4096; c += 256) v = table[c] = (v >>> 8) ^ T[v & 0xFF];
	}
	var out = [];
	for(n = 1; n != 16; ++n) out[n - 1] = typeof Int32Array !== 'undefined' ? table.subarray(n * 256, n * 256 + 256) : table.slice(n * 256, n * 256 + 256);
	return out;
}
var TT = slice_by_16_tables(T0);
var T1 = TT[0],  T2 = TT[1],  T3 = TT[2],  T4 = TT[3],  T5 = TT[4];
var T6 = TT[5],  T7 = TT[6],  T8 = TT[7],  T9 = TT[8],  Ta = TT[9];
var Tb = TT[10], Tc = TT[11], Td = TT[12], Te = TT[13], Tf = TT[14];
function crc32_bstr(bstr, seed) {
	var C = seed ^ -1;
	for(var i = 0, L = bstr.length; i < L;) C = (C>>>8) ^ T0[(C^bstr.charCodeAt(i++))&0xFF];
	return ~C;
}

function crc32_buf(B, seed) {
	var C = seed ^ -1, L = B.length - 15, i = 0;
	for(; i < L;) C =
		Tf[B[i++] ^ (C & 255)] ^
		Te[B[i++] ^ ((C >> 8) & 255)] ^
		Td[B[i++] ^ ((C >> 16) & 255)] ^
		Tc[B[i++] ^ (C >>> 24)] ^
		Tb[B[i++]] ^ Ta[B[i++]] ^ T9[B[i++]] ^ T8[B[i++]] ^
		T7[B[i++]] ^ T6[B[i++]] ^ T5[B[i++]] ^ T4[B[i++]] ^
		T3[B[i++]] ^ T2[B[i++]] ^ T1[B[i++]] ^ T0[B[i++]];
	L += 15;
	while(i < L) C = (C>>>8) ^ T0[(C^B[i++])&0xFF];
	return ~C;
}

function crc32_str(str, seed) {
	var C = seed ^ -1;
	for(var i = 0, L = str.length, c = 0, d = 0; i < L;) {
		c = str.charCodeAt(i++);
		if(c < 0x80) {
			C = (C>>>8) ^ T0[(C^c)&0xFF];
		} else if(c < 0x800) {
			C = (C>>>8) ^ T0[(C ^ (192|((c>>6)&31)))&0xFF];
			C = (C>>>8) ^ T0[(C ^ (128|(c&63)))&0xFF];
		} else if(c >= 0xD800 && c < 0xE000) {
			c = (c&1023)+64; d = str.charCodeAt(i++)&1023;
			C = (C>>>8) ^ T0[(C ^ (240|((c>>8)&7)))&0xFF];
			C = (C>>>8) ^ T0[(C ^ (128|((c>>2)&63)))&0xFF];
			C = (C>>>8) ^ T0[(C ^ (128|((d>>6)&15)|((c&3)<<4)))&0xFF];
			C = (C>>>8) ^ T0[(C ^ (128|(d&63)))&0xFF];
		} else {
			C = (C>>>8) ^ T0[(C ^ (224|((c>>12)&15)))&0xFF];
			C = (C>>>8) ^ T0[(C ^ (128|((c>>6)&63)))&0xFF];
			C = (C>>>8) ^ T0[(C ^ (128|(c&63)))&0xFF];
		}
	}
	return ~C;
}
CRC32.table = T0;
CRC32.bstr = crc32_bstr;
CRC32.buf = crc32_buf;
CRC32.str = crc32_str;
return CRC32;
})();
/* [MS-CFB] v20171201 */
var CFB = (function _CFB(){
var exports = {};
exports.version = '1.2.1';
/* [MS-CFB] 2.6.4 */
function namecmp(l, r) {
	var L = l.split("/"), R = r.split("/");
	for(var i = 0, c = 0, Z = Math.min(L.length, R.length); i < Z; ++i) {
		if((c = L[i].length - R[i].length)) return c;
		if(L[i] != R[i]) return L[i] < R[i] ? -1 : 1;
	}
	return L.length - R.length;
}
function dirname(p) {
	if(p.charAt(p.length - 1) == "/") return (p.slice(0,-1).indexOf("/") === -1) ? p : dirname(p.slice(0, -1));
	var c = p.lastIndexOf("/");
	return (c === -1) ? p : p.slice(0, c+1);
}

function filename(p) {
	if(p.charAt(p.length - 1) == "/") return filename(p.slice(0, -1));
	var c = p.lastIndexOf("/");
	return (c === -1) ? p : p.slice(c+1);
}
/* -------------------------------------------------------------------------- */
/* DOS Date format:
   high|YYYYYYYm.mmmddddd.HHHHHMMM.MMMSSSSS|low
   add 1980 to stored year
   stored second should be doubled
*/

/* write JS date to buf as a DOS date */
function write_dos_date(buf, date) {
	if(typeof date === "string") date = new Date(date);
	var hms = date.getHours();
	hms = hms << 6 | date.getMinutes();
	hms = hms << 5 | (date.getSeconds()>>>1);
	buf.write_shift(2, hms);
	var ymd = (date.getFullYear() - 1980);
	ymd = ymd << 4 | (date.getMonth()+1);
	ymd = ymd << 5 | date.getDate();
	buf.write_shift(2, ymd);
}

/* read four bytes from buf and interpret as a DOS date */
function parse_dos_date(buf) {
	var hms = buf.read_shift(2) & 0xFFFF;
	var ymd = buf.read_shift(2) & 0xFFFF;
	var val = new Date();
	var d = ymd & 0x1F; ymd >>>= 5;
	var m = ymd & 0x0F; ymd >>>= 4;
	val.setMilliseconds(0);
	val.setFullYear(ymd + 1980);
	val.setMonth(m-1);
	val.setDate(d);
	var S = hms & 0x1F; hms >>>= 5;
	var M = hms & 0x3F; hms >>>= 6;
	val.setHours(hms);
	val.setMinutes(M);
	val.setSeconds(S<<1);
	return val;
}
function parse_extra_field(blob) {
	prep_blob(blob, 0);
	var o = {};
	var flags = 0;
	while(blob.l <= blob.length - 4) {
		var type = blob.read_shift(2);
		var sz = blob.read_shift(2), tgt = blob.l + sz;
		var p = {};
		switch(type) {
			/* UNIX-style Timestamps */
			case 0x5455: {
				flags = blob.read_shift(1);
				if(flags & 1) p.mtime = blob.read_shift(4);
				/* for some reason, CD flag corresponds to LFH */
				if(sz > 5) {
					if(flags & 2) p.atime = blob.read_shift(4);
					if(flags & 4) p.ctime = blob.read_shift(4);
				}
				if(p.mtime) p.mt = new Date(p.mtime*1000);
			}
			break;
		}
		blob.l = tgt;
		o[type] = p;
	}
	return o;
}
var fs;
function get_fs() { return fs || (fs = require('fs')); }
function parse(file, options) {
if(file[0] == 0x50 && file[1] == 0x4b) return parse_zip(file, options);
if((file[0] | 0x20) == 0x6d && (file[1]|0x20) == 0x69) return parse_mad(file, options);
if(file.length < 512) throw new Error("CFB file size " + file.length + " < 512");
var mver = 3;
var ssz = 512;
var nmfs = 0; // number of mini FAT sectors
var difat_sec_cnt = 0;
var dir_start = 0;
var minifat_start = 0;
var difat_start = 0;

var fat_addrs = []; // locations of FAT sectors

/* [MS-CFB] 2.2 Compound File Header */
var blob = file.slice(0,512);
prep_blob(blob, 0);

/* major version */
var mv = check_get_mver(blob);
mver = mv[0];
switch(mver) {
	case 3: ssz = 512; break; case 4: ssz = 4096; break;
	case 0: if(mv[1] == 0) return parse_zip(file, options);
	/* falls through */
	default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);
}

/* reprocess header */
if(ssz !== 512) { blob = file.slice(0,ssz); prep_blob(blob, 28 /* blob.l */); }
/* Save header for final object */
var header = file.slice(0,ssz);

check_shifts(blob, mver);

// Number of Directory Sectors
var dir_cnt = blob.read_shift(4, 'i');
if(mver === 3 && dir_cnt !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + dir_cnt);

// Number of FAT Sectors
blob.l += 4;

// First Directory Sector Location
dir_start = blob.read_shift(4, 'i');

// Transaction Signature
blob.l += 4;

// Mini Stream Cutoff Size
blob.chk('00100000', 'Mini Stream Cutoff Size: ');

// First Mini FAT Sector Location
minifat_start = blob.read_shift(4, 'i');

// Number of Mini FAT Sectors
nmfs = blob.read_shift(4, 'i');

// First DIFAT sector location
difat_start = blob.read_shift(4, 'i');

// Number of DIFAT Sectors
difat_sec_cnt = blob.read_shift(4, 'i');

// Grab FAT Sector Locations
for(var q = -1, j = 0; j < 109; ++j) { /* 109 = (512 - blob.l)>>>2; */
	q = blob.read_shift(4, 'i');
	if(q<0) break;
	fat_addrs[j] = q;
}

/** Break the file up into sectors */
var sectors = sectorify(file, ssz);

sleuth_fat(difat_start, difat_sec_cnt, sectors, ssz, fat_addrs);

/** Chains */
var sector_list = make_sector_list(sectors, dir_start, fat_addrs, ssz);

sector_list[dir_start].name = "!Directory";
if(nmfs > 0 && minifat_start !== ENDOFCHAIN) sector_list[minifat_start].name = "!MiniFAT";
sector_list[fat_addrs[0]].name = "!FAT";
sector_list.fat_addrs = fat_addrs;
sector_list.ssz = ssz;

/* [MS-CFB] 2.6.1 Compound File Directory Entry */
var files = {}, Paths = [], FileIndex = [], FullPaths = [];
read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex, minifat_start);

build_full_paths(FileIndex, FullPaths, Paths);
Paths.shift();

var o = {
	FileIndex: FileIndex,
	FullPaths: FullPaths
};

// $FlowIgnore
if(options && options.raw) o.raw = {header: header, sectors: sectors};
return o;
} // parse

/* [MS-CFB] 2.2 Compound File Header -- read up to major version */
function check_get_mver(blob) {
	if(blob[blob.l] == 0x50 && blob[blob.l + 1] == 0x4b) return [0, 0];
	// header signature 8
	blob.chk(HEADER_SIGNATURE, 'Header Signature: ');

	// clsid 16
	//blob.chk(HEADER_CLSID, 'CLSID: ');
	blob.l += 16;

	// minor version 2
	var mver = blob.read_shift(2, 'u');

	return [blob.read_shift(2,'u'), mver];
}
function check_shifts(blob, mver) {
	var shift = 0x09;

	// Byte Order
	//blob.chk('feff', 'Byte Order: '); // note: some writers put 0xffff
	blob.l += 2;

	// Sector Shift
	switch((shift = blob.read_shift(2))) {
		case 0x09: if(mver != 3) throw new Error('Sector Shift: Expected 9 saw ' + shift); break;
		case 0x0c: if(mver != 4) throw new Error('Sector Shift: Expected 12 saw ' + shift); break;
		default: throw new Error('Sector Shift: Expected 9 or 12 saw ' + shift);
	}

	// Mini Sector Shift
	blob.chk('0600', 'Mini Sector Shift: ');

	// Reserved
	blob.chk('000000000000', 'Reserved: ');
}

/** Break the file up into sectors */
function sectorify(file, ssz) {
	var nsectors = Math.ceil(file.length/ssz)-1;
	var sectors = [];
	for(var i=1; i < nsectors; ++i) sectors[i-1] = file.slice(i*ssz,(i+1)*ssz);
	sectors[nsectors-1] = file.slice(nsectors*ssz);
	return sectors;
}

/* [MS-CFB] 2.6.4 Red-Black Tree */
function build_full_paths(FI, FP, Paths) {
	var i = 0, L = 0, R = 0, C = 0, j = 0, pl = Paths.length;
	var dad = [], q = [];

	for(; i < pl; ++i) { dad[i]=q[i]=i; FP[i]=Paths[i]; }

	for(; j < q.length; ++j) {
		i = q[j];
		L = FI[i].L; R = FI[i].R; C = FI[i].C;
		if(dad[i] === i) {
			if(L !== -1 /*NOSTREAM*/ && dad[L] !== L) dad[i] = dad[L];
			if(R !== -1 && dad[R] !== R) dad[i] = dad[R];
		}
		if(C !== -1 /*NOSTREAM*/) dad[C] = i;
		if(L !== -1 && i != dad[i]) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); }
		if(R !== -1 && i != dad[i]) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); }
	}
	for(i=1; i < pl; ++i) if(dad[i] === i) {
		if(R !== -1 /*NOSTREAM*/ && dad[R] !== R) dad[i] = dad[R];
		else if(L !== -1 && dad[L] !== L) dad[i] = dad[L];
	}

	for(i=1; i < pl; ++i) {
		if(FI[i].type === 0 /* unknown */) continue;
		j = i;
		if(j != dad[j]) do {
			j = dad[j];
			FP[i] = FP[j] + "/" + FP[i];
		} while (j !== 0 && -1 !== dad[j] && j != dad[j]);
		dad[i] = -1;
	}

	FP[0] += "/";
	for(i=1; i < pl; ++i) {
		if(FI[i].type !== 2 /* stream */) FP[i] += "/";
	}
}

function get_mfat_entry(entry, payload, mini) {
	var start = entry.start, size = entry.size;
	//return (payload.slice(start*MSSZ, start*MSSZ + size));
	var o = [];
	var idx = start;
	while(mini && size > 0 && idx >= 0) {
		o.push(payload.slice(idx * MSSZ, idx * MSSZ + MSSZ));
		size -= MSSZ;
		idx = __readInt32LE(mini, idx * 4);
	}
	if(o.length === 0) return (new_buf(0));
	return (bconcat(o).slice(0, entry.size));
}

/** Chase down the rest of the DIFAT chain to build a comprehensive list
    DIFAT chains by storing the next sector number as the last 32 bits */
function sleuth_fat(idx, cnt, sectors, ssz, fat_addrs) {
	var q = ENDOFCHAIN;
	if(idx === ENDOFCHAIN) {
		if(cnt !== 0) throw new Error("DIFAT chain shorter than expected");
	} else if(idx !== -1 /*FREESECT*/) {
		var sector = sectors[idx], m = (ssz>>>2)-1;
		if(!sector) return;
		for(var i = 0; i < m; ++i) {
			if((q = __readInt32LE(sector,i*4)) === ENDOFCHAIN) break;
			fat_addrs.push(q);
		}
		sleuth_fat(__readInt32LE(sector,ssz-4),cnt - 1, sectors, ssz, fat_addrs);
	}
}

/** Follow the linked list of sectors for a given starting point */
function get_sector_list(sectors, start, fat_addrs, ssz, chkd) {
	var buf = [], buf_chain = [];
	if(!chkd) chkd = [];
	var modulus = ssz - 1, j = 0, jj = 0;
	for(j=start; j>=0;) {
		chkd[j] = true;
		buf[buf.length] = j;
		buf_chain.push(sectors[j]);
		var addr = fat_addrs[Math.floor(j*4/ssz)];
		jj = ((j*4) & modulus);
		if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
		if(!sectors[addr]) break;
		j = __readInt32LE(sectors[addr], jj);
	}
	return {nodes: buf, data:__toBuffer([buf_chain])};
}

/** Chase down the sector linked lists */
function make_sector_list(sectors, dir_start, fat_addrs, ssz) {
	var sl = sectors.length, sector_list = ([]);
	var chkd = [], buf = [], buf_chain = [];
	var modulus = ssz - 1, i=0, j=0, k=0, jj=0;
	for(i=0; i < sl; ++i) {
		buf = ([]);
		k = (i + dir_start); if(k >= sl) k-=sl;
		if(chkd[k]) continue;
		buf_chain = [];
		var seen = [];
		for(j=k; j>=0;) {
			seen[j] = true;
			chkd[j] = true;
			buf[buf.length] = j;
			buf_chain.push(sectors[j]);
			var addr = fat_addrs[Math.floor(j*4/ssz)];
			jj = ((j*4) & modulus);
			if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
			if(!sectors[addr]) break;
			j = __readInt32LE(sectors[addr], jj);
			if(seen[j]) break;
		}
		sector_list[k] = ({nodes: buf, data:__toBuffer([buf_chain])});
	}
	return sector_list;
}

/* [MS-CFB] 2.6.1 Compound File Directory Entry */
function read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex, mini) {
	var minifat_store = 0, pl = (Paths.length?2:0);
	var sector = sector_list[dir_start].data;
	var i = 0, namelen = 0, name;
	for(; i < sector.length; i+= 128) {
		var blob = sector.slice(i, i+128);
		prep_blob(blob, 64);
		namelen = blob.read_shift(2);
		name = __utf16le(blob,0,namelen-pl);
		Paths.push(name);
		var o = ({
			name:  name,
			type:  blob.read_shift(1),
			color: blob.read_shift(1),
			L:     blob.read_shift(4, 'i'),
			R:     blob.read_shift(4, 'i'),
			C:     blob.read_shift(4, 'i'),
			clsid: blob.read_shift(16),
			state: blob.read_shift(4, 'i'),
			start: 0,
			size: 0
		});
		var ctime = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
		if(ctime !== 0) o.ct = read_date(blob, blob.l-8);
		var mtime = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
		if(mtime !== 0) o.mt = read_date(blob, blob.l-8);
		o.start = blob.read_shift(4, 'i');
		o.size = blob.read_shift(4, 'i');
		if(o.size < 0 && o.start < 0) { o.size = o.type = 0; o.start = ENDOFCHAIN; o.name = ""; }
		if(o.type === 5) { /* root */
			minifat_store = o.start;
			if(nmfs > 0 && minifat_store !== ENDOFCHAIN) sector_list[minifat_store].name = "!StreamData";
			/*minifat_size = o.size;*/
		} else if(o.size >= 4096 /* MSCSZ */) {
			o.storage = 'fat';
			if(sector_list[o.start] === undefined) sector_list[o.start] = get_sector_list(sectors, o.start, sector_list.fat_addrs, sector_list.ssz);
			sector_list[o.start].name = o.name;
			o.content = (sector_list[o.start].data.slice(0,o.size));
		} else {
			o.storage = 'minifat';
			if(o.size < 0) o.size = 0;
			else if(minifat_store !== ENDOFCHAIN && o.start !== ENDOFCHAIN && sector_list[minifat_store]) {
				o.content = get_mfat_entry(o, sector_list[minifat_store].data, (sector_list[mini]||{}).data);
			}
		}
		if(o.content) prep_blob(o.content, 0);
		files[name] = o;
		FileIndex.push(o);
	}
}

function read_date(blob, offset) {
	return new Date(( ( (__readUInt32LE(blob,offset+4)/1e7)*Math.pow(2,32)+__readUInt32LE(blob,offset)/1e7 ) - 11644473600)*1000);
}

function read_file(filename, options) {
	get_fs();
	return parse(fs.readFileSync(filename), options);
}

function read(blob, options) {
	var type = options && options.type;
	if(!type) {
		if(has_buf && Buffer.isBuffer(blob)) type = "buffer";
	}
	switch(type || "base64") {
		case "file": return read_file(blob, options);
		case "base64": return parse(s2a(Base64.decode(blob)), options);
		case "binary": return parse(s2a(blob), options);
	}
	return parse(blob, options);
}

function init_cfb(cfb, opts) {
	var o = opts || {}, root = o.root || "Root Entry";
	if(!cfb.FullPaths) cfb.FullPaths = [];
	if(!cfb.FileIndex) cfb.FileIndex = [];
	if(cfb.FullPaths.length !== cfb.FileIndex.length) throw new Error("inconsistent CFB structure");
	if(cfb.FullPaths.length === 0) {
		cfb.FullPaths[0] = root + "/";
		cfb.FileIndex[0] = ({ name: root, type: 5 });
	}
	if(o.CLSID) cfb.FileIndex[0].clsid = o.CLSID;
	seed_cfb(cfb);
}
function seed_cfb(cfb) {
	var nm = "\u0001Sh33tJ5";
	if(CFB.find(cfb, "/" + nm)) return;
	var p = new_buf(4); p[0] = 55; p[1] = p[3] = 50; p[2] = 54;
	cfb.FileIndex.push(({ name: nm, type: 2, content:p, size:4, L:69, R:69, C:69 }));
	cfb.FullPaths.push(cfb.FullPaths[0] + nm);
	rebuild_cfb(cfb);
}
function rebuild_cfb(cfb, f) {
	init_cfb(cfb);
	var gc = false, s = false;
	for(var i = cfb.FullPaths.length - 1; i >= 0; --i) {
		var _file = cfb.FileIndex[i];
		switch(_file.type) {
			case 0:
				if(s) gc = true;
				else { cfb.FileIndex.pop(); cfb.FullPaths.pop(); }
				break;
			case 1: case 2: case 5:
				s = true;
				if(isNaN(_file.R * _file.L * _file.C)) gc = true;
				if(_file.R > -1 && _file.L > -1 && _file.R == _file.L) gc = true;
				break;
			default: gc = true; break;
		}
	}
	if(!gc && !f) return;

	var now = new Date(1987, 1, 19), j = 0;
	// Track which names exist
	var fullPaths = Object.create ? Object.create(null) : {};
	var data = [];
	for(i = 0; i < cfb.FullPaths.length; ++i) {
		fullPaths[cfb.FullPaths[i]] = true;
		if(cfb.FileIndex[i].type === 0) continue;
		data.push([cfb.FullPaths[i], cfb.FileIndex[i]]);
	}
	for(i = 0; i < data.length; ++i) {
		var dad = dirname(data[i][0]);
		s = fullPaths[dad];
		if(!s) {
			data.push([dad, ({
				name: filename(dad).replace("/",""),
				type: 1,
				clsid: HEADER_CLSID,
				ct: now, mt: now,
				content: null
			})]);
			// Add name to set
			fullPaths[dad] = true;
		}
	}

	data.sort(function(x,y) { return namecmp(x[0], y[0]); });
	cfb.FullPaths = []; cfb.FileIndex = [];
	for(i = 0; i < data.length; ++i) { cfb.FullPaths[i] = data[i][0]; cfb.FileIndex[i] = data[i][1]; }
	for(i = 0; i < data.length; ++i) {
		var elt = cfb.FileIndex[i];
		var nm = cfb.FullPaths[i];

		elt.name =  filename(nm).replace("/","");
		elt.L = elt.R = elt.C = -(elt.color = 1);
		elt.size = elt.content ? elt.content.length : 0;
		elt.start = 0;
		elt.clsid = (elt.clsid || HEADER_CLSID);
		if(i === 0) {
			elt.C = data.length > 1 ? 1 : -1;
			elt.size = 0;
			elt.type = 5;
		} else if(nm.slice(-1) == "/") {
			for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==nm) break;
			elt.C = j >= data.length ? -1 : j;
			for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==dirname(nm)) break;
			elt.R = j >= data.length ? -1 : j;
			elt.type = 1;
		} else {
			if(dirname(cfb.FullPaths[i+1]||"") == dirname(nm)) elt.R = i + 1;
			elt.type = 2;
		}
	}

}

function _write(cfb, options) {
	var _opts = options || {};
	/* MAD is order-sensitive, skip rebuild and sort */
	if(_opts.fileType == 'mad') return write_mad(cfb, _opts);
	rebuild_cfb(cfb);
	switch(_opts.fileType) {
		case 'zip': return write_zip(cfb, _opts);
		//case 'mad': return write_mad(cfb, _opts);
	}
	var L = (function(cfb){
		var mini_size = 0, fat_size = 0;
		for(var i = 0; i < cfb.FileIndex.length; ++i) {
			var file = cfb.FileIndex[i];
			if(!file.content) continue;
var flen = file.content.length;
			if(flen > 0){
				if(flen < 0x1000) mini_size += (flen + 0x3F) >> 6;
				else fat_size += (flen + 0x01FF) >> 9;
			}
		}
		var dir_cnt = (cfb.FullPaths.length +3) >> 2;
		var mini_cnt = (mini_size + 7) >> 3;
		var mfat_cnt = (mini_size + 0x7F) >> 7;
		var fat_base = mini_cnt + fat_size + dir_cnt + mfat_cnt;
		var fat_cnt = (fat_base + 0x7F) >> 7;
		var difat_cnt = fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F);
		while(((fat_base + fat_cnt + difat_cnt + 0x7F) >> 7) > fat_cnt) difat_cnt = ++fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F);
		var L =  [1, difat_cnt, fat_cnt, mfat_cnt, dir_cnt, fat_size, mini_size, 0];
		cfb.FileIndex[0].size = mini_size << 6;
		L[7] = (cfb.FileIndex[0].start=L[0]+L[1]+L[2]+L[3]+L[4]+L[5])+((L[6]+7) >> 3);
		return L;
	})(cfb);
	var o = new_buf(L[7] << 9);
	var i = 0, T = 0;
	{
		for(i = 0; i < 8; ++i) o.write_shift(1, HEADER_SIG[i]);
		for(i = 0; i < 8; ++i) o.write_shift(2, 0);
		o.write_shift(2, 0x003E);
		o.write_shift(2, 0x0003);
		o.write_shift(2, 0xFFFE);
		o.write_shift(2, 0x0009);
		o.write_shift(2, 0x0006);
		for(i = 0; i < 3; ++i) o.write_shift(2, 0);
		o.write_shift(4, 0);
		o.write_shift(4, L[2]);
		o.write_shift(4, L[0] + L[1] + L[2] + L[3] - 1);
		o.write_shift(4, 0);
		o.write_shift(4, 1<<12);
		o.write_shift(4, L[3] ? L[0] + L[1] + L[2] - 1: ENDOFCHAIN);
		o.write_shift(4, L[3]);
		o.write_shift(-4, L[1] ? L[0] - 1: ENDOFCHAIN);
		o.write_shift(4, L[1]);
		for(i = 0; i < 109; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1);
	}
	if(L[1]) {
		for(T = 0; T < L[1]; ++T) {
			for(; i < 236 + T * 127; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1);
			o.write_shift(-4, T === L[1] - 1 ? ENDOFCHAIN : T + 1);
		}
	}
	var chainit = function(w) {
		for(T += w; i<T-1; ++i) o.write_shift(-4, i+1);
		if(w) { ++i; o.write_shift(-4, ENDOFCHAIN); }
	};
	T = i = 0;
	for(T+=L[1]; i<T; ++i) o.write_shift(-4, consts.DIFSECT);
	for(T+=L[2]; i<T; ++i) o.write_shift(-4, consts.FATSECT);
	chainit(L[3]);
	chainit(L[4]);
	var j = 0, flen = 0;
	var file = cfb.FileIndex[0];
	for(; j < cfb.FileIndex.length; ++j) {
		file = cfb.FileIndex[j];
		if(!file.content) continue;
flen = file.content.length;
		if(flen < 0x1000) continue;
		file.start = T;
		chainit((flen + 0x01FF) >> 9);
	}
	chainit((L[6] + 7) >> 3);
	while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN);
	T = i = 0;
	for(j = 0; j < cfb.FileIndex.length; ++j) {
		file = cfb.FileIndex[j];
		if(!file.content) continue;
flen = file.content.length;
		if(!flen || flen >= 0x1000) continue;
		file.start = T;
		chainit((flen + 0x3F) >> 6);
	}
	while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN);
	for(i = 0; i < L[4]<<2; ++i) {
		var nm = cfb.FullPaths[i];
		if(!nm || nm.length === 0) {
			for(j = 0; j < 17; ++j) o.write_shift(4, 0);
			for(j = 0; j < 3; ++j) o.write_shift(4, -1);
			for(j = 0; j < 12; ++j) o.write_shift(4, 0);
			continue;
		}
		file = cfb.FileIndex[i];
		if(i === 0) file.start = file.size ? file.start - 1 : ENDOFCHAIN;
		var _nm = (i === 0 && _opts.root) || file.name;
		flen = 2*(_nm.length+1);
		o.write_shift(64, _nm, "utf16le");
		o.write_shift(2, flen);
		o.write_shift(1, file.type);
		o.write_shift(1, file.color);
		o.write_shift(-4, file.L);
		o.write_shift(-4, file.R);
		o.write_shift(-4, file.C);
		if(!file.clsid) for(j = 0; j < 4; ++j) o.write_shift(4, 0);
		else o.write_shift(16, file.clsid, "hex");
		o.write_shift(4, file.state || 0);
		o.write_shift(4, 0); o.write_shift(4, 0);
		o.write_shift(4, 0); o.write_shift(4, 0);
		o.write_shift(4, file.start);
		o.write_shift(4, file.size); o.write_shift(4, 0);
	}
	for(i = 1; i < cfb.FileIndex.length; ++i) {
		file = cfb.FileIndex[i];
if(file.size >= 0x1000) {
			o.l = (file.start+1) << 9;
			if (has_buf && Buffer.isBuffer(file.content)) {
				file.content.copy(o, o.l, 0, file.size);
				// o is a 0-filled Buffer so just set next offset
				o.l += (file.size + 511) & -512;
			} else {
				for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]);
				for(; j & 0x1FF; ++j) o.write_shift(1, 0);
			}
		}
	}
	for(i = 1; i < cfb.FileIndex.length; ++i) {
		file = cfb.FileIndex[i];
if(file.size > 0 && file.size < 0x1000) {
			if (has_buf && Buffer.isBuffer(file.content)) {
				file.content.copy(o, o.l, 0, file.size);
				// o is a 0-filled Buffer so just set next offset
				o.l += (file.size + 63) & -64;
			} else {
				for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]);
				for(; j & 0x3F; ++j) o.write_shift(1, 0);
			}
		}
	}
	if (has_buf) {
		o.l = o.length;
	} else {
		// When using Buffer, already 0-filled
		while(o.l < o.length) o.write_shift(1, 0);
	}
	return o;
}
/* [MS-CFB] 2.6.4 (Unicode 3.0.1 case conversion) */
function find(cfb, path) {
	var UCFullPaths = cfb.FullPaths.map(function(x) { return x.toUpperCase(); });
	var UCPaths = UCFullPaths.map(function(x) { var y = x.split("/"); return y[y.length - (x.slice(-1) == "/" ? 2 : 1)]; });
	var k = false;
	if(path.charCodeAt(0) === 47 /* "/" */) { k = true; path = UCFullPaths[0].slice(0, -1) + path; }
	else k = path.indexOf("/") !== -1;
	var UCPath = path.toUpperCase();
	var w = k === true ? UCFullPaths.indexOf(UCPath) : UCPaths.indexOf(UCPath);
	if(w !== -1) return cfb.FileIndex[w];

	var m = !UCPath.match(chr1);
	UCPath = UCPath.replace(chr0,'');
	if(m) UCPath = UCPath.replace(chr1,'!');
	for(w = 0; w < UCFullPaths.length; ++w) {
		if((m ? UCFullPaths[w].replace(chr1,'!') : UCFullPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w];
		if((m ? UCPaths[w].replace(chr1,'!') : UCPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w];
	}
	return null;
}
/** CFB Constants */
var MSSZ = 64; /* Mini Sector Size = 1<<6 */
//var MSCSZ = 4096; /* Mini Stream Cutoff Size */
/* 2.1 Compound File Sector Numbers and Types */
var ENDOFCHAIN = -2;
/* 2.2 Compound File Header */
var HEADER_SIGNATURE = 'd0cf11e0a1b11ae1';
var HEADER_SIG = [0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1];
var HEADER_CLSID = '00000000000000000000000000000000';
var consts = {
	/* 2.1 Compund File Sector Numbers and Types */
	MAXREGSECT: -6,
	DIFSECT: -4,
	FATSECT: -3,
	ENDOFCHAIN: ENDOFCHAIN,
	FREESECT: -1,
	/* 2.2 Compound File Header */
	HEADER_SIGNATURE: HEADER_SIGNATURE,
	HEADER_MINOR_VERSION: '3e00',
	MAXREGSID: -6,
	NOSTREAM: -1,
	HEADER_CLSID: HEADER_CLSID,
	/* 2.6.1 Compound File Directory Entry */
	EntryTypes: ['unknown','storage','stream','lockbytes','property','root']
};

function write_file(cfb, filename, options) {
	get_fs();
	var o = _write(cfb, options);
fs.writeFileSync(filename, o);
}

function a2s(o) {
	var out = new Array(o.length);
	for(var i = 0; i < o.length; ++i) out[i] = String.fromCharCode(o[i]);
	return out.join("");
}

function write(cfb, options) {
	var o = _write(cfb, options);
	switch(options && options.type || "buffer") {
		case "file": get_fs(); fs.writeFileSync(options.filename, (o)); return o;
		case "binary": return typeof o == "string" ? o : a2s(o);
		case "base64": return Base64.encode(typeof o == "string" ? o : a2s(o));
		case "buffer": if(has_buf) return Buffer.isBuffer(o) ? o : Buffer_from(o);
			/* falls through */
		case "array": return typeof o == "string" ? s2a(o) : o;
	}
	return o;
}
/* node < 8.1 zlib does not expose bytesRead, so default to pure JS */
var _zlib;
function use_zlib(zlib) { try {
	var InflateRaw = zlib.InflateRaw;
	var InflRaw = new InflateRaw();
	InflRaw._processChunk(new Uint8Array([3, 0]), InflRaw._finishFlushFlag);
	if(InflRaw.bytesRead) _zlib = zlib;
	else throw new Error("zlib does not expose bytesRead");
} catch(e) {console.error("cannot use native zlib: " + (e.message || e)); } }

function _inflateRawSync(payload, usz) {
	if(!_zlib) return _inflate(payload, usz);
	var InflateRaw = _zlib.InflateRaw;
	var InflRaw = new InflateRaw();
	var out = InflRaw._processChunk(payload.slice(payload.l), InflRaw._finishFlushFlag);
	payload.l += InflRaw.bytesRead;
	return out;
}

function _deflateRawSync(payload) {
	return _zlib ? _zlib.deflateRawSync(payload) : _deflate(payload);
}
var CLEN_ORDER = [ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 ];

/*  LEN_ID = [ 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285 ]; */
var LEN_LN = [   3,   4,   5,   6,   7,   8,   9,  10,  11,  13 , 15,  17,  19,  23,  27,  31,  35,  43,  51,  59,  67,  83,  99, 115, 131, 163, 195, 227, 258 ];

/*  DST_ID = [  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13,  14,  15,  16,  17,  18,  19,   20,   21,   22,   23,   24,   25,   26,    27,    28,    29 ]; */
var DST_LN = [  1,  2,  3,  4,  5,  7,  9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577 ];

function bit_swap_8(n) { var t = (((((n<<1)|(n<<11)) & 0x22110) | (((n<<5)|(n<<15)) & 0x88440))); return ((t>>16) | (t>>8) |t)&0xFF; }

var use_typed_arrays = typeof Uint8Array !== 'undefined';

var bitswap8 = use_typed_arrays ? new Uint8Array(1<<8) : [];
for(var q = 0; q < (1<<8); ++q) bitswap8[q] = bit_swap_8(q);

function bit_swap_n(n, b) {
	var rev = bitswap8[n & 0xFF];
	if(b <= 8) return rev >>> (8-b);
	rev = (rev << 8) | bitswap8[(n>>8)&0xFF];
	if(b <= 16) return rev >>> (16-b);
	rev = (rev << 8) | bitswap8[(n>>16)&0xFF];
	return rev >>> (24-b);
}

/* helpers for unaligned bit reads */
function read_bits_2(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 6 ? 0 : buf[h+1]<<8))>>>w)& 0x03; }
function read_bits_3(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 5 ? 0 : buf[h+1]<<8))>>>w)& 0x07; }
function read_bits_4(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 4 ? 0 : buf[h+1]<<8))>>>w)& 0x0F; }
function read_bits_5(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 3 ? 0 : buf[h+1]<<8))>>>w)& 0x1F; }
function read_bits_7(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 1 ? 0 : buf[h+1]<<8))>>>w)& 0x7F; }

/* works up to n = 3 * 8 + 1 = 25 */
function read_bits_n(buf, bl, n) {
	var w = (bl&7), h = (bl>>>3), f = ((1<<n)-1);
	var v = buf[h] >>> w;
	if(n < 8 - w) return v & f;
	v |= buf[h+1]<<(8-w);
	if(n < 16 - w) return v & f;
	v |= buf[h+2]<<(16-w);
	if(n < 24 - w) return v & f;
	v |= buf[h+3]<<(24-w);
	return v & f;
}

/* helpers for unaligned bit writes */
function write_bits_3(buf, bl, v) { var w = bl & 7, h = bl >>> 3;
	if(w <= 5) buf[h] |= (v & 7) << w;
	else {
		buf[h] |= (v << w) & 0xFF;
		buf[h+1] = (v&7) >> (8-w);
	}
	return bl + 3;
}

function write_bits_1(buf, bl, v) {
	var w = bl & 7, h = bl >>> 3;
	v = (v&1) << w;
	buf[h] |= v;
	return bl + 1;
}
function write_bits_8(buf, bl, v) {
	var w = bl & 7, h = bl >>> 3;
	v <<= w;
	buf[h] |=  v & 0xFF; v >>>= 8;
	buf[h+1] = v;
	return bl + 8;
}
function write_bits_16(buf, bl, v) {
	var w = bl & 7, h = bl >>> 3;
	v <<= w;
	buf[h] |=  v & 0xFF; v >>>= 8;
	buf[h+1] = v & 0xFF;
	buf[h+2] = v >>> 8;
	return bl + 16;
}

/* until ArrayBuffer#realloc is a thing, fake a realloc */
function realloc(b, sz) {
	var L = b.length, M = 2*L > sz ? 2*L : sz + 5, i = 0;
	if(L >= sz) return b;
	if(has_buf) {
		var o = new_unsafe_buf(M);
		// $FlowIgnore
		if(b.copy) b.copy(o);
		else for(; i < b.length; ++i) o[i] = b[i];
		return o;
	} else if(use_typed_arrays) {
		var a = new Uint8Array(M);
		if(a.set) a.set(b);
		else for(; i < L; ++i) a[i] = b[i];
		return a;
	}
	b.length = M;
	return b;
}

/* zero-filled arrays for older browsers */
function zero_fill_array(n) {
	var o = new Array(n);
	for(var i = 0; i < n; ++i) o[i] = 0;
	return o;
}

/* build tree (used for literals and lengths) */
function build_tree(clens, cmap, MAX) {
	var maxlen = 1, w = 0, i = 0, j = 0, ccode = 0, L = clens.length;

	var bl_count  = use_typed_arrays ? new Uint16Array(32) : zero_fill_array(32);
	for(i = 0; i < 32; ++i) bl_count[i] = 0;

	for(i = L; i < MAX; ++i) clens[i] = 0;
	L = clens.length;

	var ctree = use_typed_arrays ? new Uint16Array(L) : zero_fill_array(L); // []

	/* build code tree */
	for(i = 0; i < L; ++i) {
		bl_count[(w = clens[i])]++;
		if(maxlen < w) maxlen = w;
		ctree[i] = 0;
	}
	bl_count[0] = 0;
	for(i = 1; i <= maxlen; ++i) bl_count[i+16] = (ccode = (ccode + bl_count[i-1])<<1);
	for(i = 0; i < L; ++i) {
		ccode = clens[i];
		if(ccode != 0) ctree[i] = bl_count[ccode+16]++;
	}

	/* cmap[maxlen + 4 bits] = (off&15) + (lit<<4) reverse mapping */
	var cleni = 0;
	for(i = 0; i < L; ++i) {
		cleni = clens[i];
		if(cleni != 0) {
			ccode = bit_swap_n(ctree[i], maxlen)>>(maxlen-cleni);
			for(j = (1<<(maxlen + 4 - cleni)) - 1; j>=0; --j)
				cmap[ccode|(j<<cleni)] = (cleni&15) | (i<<4);
		}
	}
	return maxlen;
}

/* Fixed Huffman */
var fix_lmap = use_typed_arrays ? new Uint16Array(512) : zero_fill_array(512);
var fix_dmap = use_typed_arrays ? new Uint16Array(32)  : zero_fill_array(32);
if(!use_typed_arrays) {
	for(var i = 0; i < 512; ++i) fix_lmap[i] = 0;
	for(i = 0; i < 32; ++i) fix_dmap[i] = 0;
}
(function() {
	var dlens = [];
	var i = 0;
	for(;i<32; i++) dlens.push(5);
	build_tree(dlens, fix_dmap, 32);

	var clens = [];
	i = 0;
	for(; i<=143; i++) clens.push(8);
	for(; i<=255; i++) clens.push(9);
	for(; i<=279; i++) clens.push(7);
	for(; i<=287; i++) clens.push(8);
	build_tree(clens, fix_lmap, 288);
})();var _deflateRaw = (function _deflateRawIIFE() {
	var DST_LN_RE = use_typed_arrays ? new Uint8Array(0x8000) : [];
	var j = 0, k = 0;
	for(; j < DST_LN.length - 1; ++j) {
		for(; k < DST_LN[j+1]; ++k) DST_LN_RE[k] = j;
	}
	for(;k < 32768; ++k) DST_LN_RE[k] = 29;

	var LEN_LN_RE = use_typed_arrays ? new Uint8Array(0x103) : [];
	for(j = 0, k = 0; j < LEN_LN.length - 1; ++j) {
		for(; k < LEN_LN[j+1]; ++k) LEN_LN_RE[k] = j;
	}

	function write_stored(data, out) {
		var boff = 0;
		while(boff < data.length) {
			var L = Math.min(0xFFFF, data.length - boff);
			var h = boff + L == data.length;
			out.write_shift(1, +h);
			out.write_shift(2, L);
			out.write_shift(2, (~L) & 0xFFFF);
			while(L-- > 0) out[out.l++] = data[boff++];
		}
		return out.l;
	}

	/* Fixed Huffman */
	function write_huff_fixed(data, out) {
		var bl = 0;
		var boff = 0;
		var addrs = use_typed_arrays ? new Uint16Array(0x8000) : [];
		while(boff < data.length) {
			var L = /* data.length - boff; */ Math.min(0xFFFF, data.length - boff);

			/* write a stored block for short data */
			if(L < 10) {
				bl = write_bits_3(out, bl, +!!(boff + L == data.length)); // jshint ignore:line
				if(bl & 7) bl += 8 - (bl & 7);
				out.l = (bl / 8) | 0;
				out.write_shift(2, L);
				out.write_shift(2, (~L) & 0xFFFF);
				while(L-- > 0) out[out.l++] = data[boff++];
				bl = out.l * 8;
				continue;
			}

			bl = write_bits_3(out, bl, +!!(boff + L == data.length) + 2); // jshint ignore:line
			var hash = 0;
			while(L-- > 0) {
				var d = data[boff];
				hash = ((hash << 5) ^ d) & 0x7FFF;

				var match = -1, mlen = 0;

				if((match = addrs[hash])) {
					match |= boff & ~0x7FFF;
					if(match > boff) match -= 0x8000;
					if(match < boff) while(data[match + mlen] == data[boff + mlen] && mlen < 250) ++mlen;
				}

				if(mlen > 2) {
					/* Copy Token  */
					d = LEN_LN_RE[mlen];
					if(d <= 22) bl = write_bits_8(out, bl, bitswap8[d+1]>>1) - 1;
					else {
						write_bits_8(out, bl, 3);
						bl += 5;
						write_bits_8(out, bl, bitswap8[d-23]>>5);
						bl += 3;
					}
					var len_eb = (d < 8) ? 0 : ((d - 4)>>2);
					if(len_eb > 0) {
						write_bits_16(out, bl, mlen - LEN_LN[d]);
						bl += len_eb;
					}

					d = DST_LN_RE[boff - match];
					bl = write_bits_8(out, bl, bitswap8[d]>>3);
					bl -= 3;

					var dst_eb = d < 4 ? 0 : (d-2)>>1;
					if(dst_eb > 0) {
						write_bits_16(out, bl, boff - match - DST_LN[d]);
						bl += dst_eb;
					}
					for(var q = 0; q < mlen; ++q) {
						addrs[hash] = boff & 0x7FFF;
						hash = ((hash << 5) ^ data[boff]) & 0x7FFF;
						++boff;
					}
					L-= mlen - 1;
				} else {
					/* Literal Token */
					if(d <= 143) d = d + 48;
					else bl = write_bits_1(out, bl, 1);
					bl = write_bits_8(out, bl, bitswap8[d]);
					addrs[hash] = boff & 0x7FFF;
					++boff;
				}
			}

			bl = write_bits_8(out, bl, 0) - 1;
		}
		out.l = ((bl + 7)/8)|0;
		return out.l;
	}
	return function _deflateRaw(data, out) {
		if(data.length < 8) return write_stored(data, out);
		return write_huff_fixed(data, out);
	};
})();

function _deflate(data) {
	var buf = new_buf(50+Math.floor(data.length*1.1));
	var off = _deflateRaw(data, buf);
	return buf.slice(0, off);
}
/* modified inflate function also moves original read head */

var dyn_lmap = use_typed_arrays ? new Uint16Array(32768) : zero_fill_array(32768);
var dyn_dmap = use_typed_arrays ? new Uint16Array(32768) : zero_fill_array(32768);
var dyn_cmap = use_typed_arrays ? new Uint16Array(128)   : zero_fill_array(128);
var dyn_len_1 = 1, dyn_len_2 = 1;

/* 5.5.3 Expanding Huffman Codes */
function dyn(data, boff) {
	/* nomenclature from RFC1951 refers to bit values; these are offset by the implicit constant */
	var _HLIT = read_bits_5(data, boff) + 257; boff += 5;
	var _HDIST = read_bits_5(data, boff) + 1; boff += 5;
	var _HCLEN = read_bits_4(data, boff) + 4; boff += 4;
	var w = 0;

	/* grab and store code lengths */
	var clens = use_typed_arrays ? new Uint8Array(19) : zero_fill_array(19);
	var ctree = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ];
	var maxlen = 1;
	var bl_count =  use_typed_arrays ? new Uint8Array(8) : zero_fill_array(8);
	var next_code = use_typed_arrays ? new Uint8Array(8) : zero_fill_array(8);
	var L = clens.length; /* 19 */
	for(var i = 0; i < _HCLEN; ++i) {
		clens[CLEN_ORDER[i]] = w = read_bits_3(data, boff);
		if(maxlen < w) maxlen = w;
		bl_count[w]++;
		boff += 3;
	}

	/* build code tree */
	var ccode = 0;
	bl_count[0] = 0;
	for(i = 1; i <= maxlen; ++i) next_code[i] = ccode = (ccode + bl_count[i-1])<<1;
	for(i = 0; i < L; ++i) if((ccode = clens[i]) != 0) ctree[i] = next_code[ccode]++;
	/* cmap[7 bits from stream] = (off&7) + (lit<<3) */
	var cleni = 0;
	for(i = 0; i < L; ++i) {
		cleni = clens[i];
		if(cleni != 0) {
			ccode = bitswap8[ctree[i]]>>(8-cleni);
			for(var j = (1<<(7-cleni))-1; j>=0; --j) dyn_cmap[ccode|(j<<cleni)] = (cleni&7) | (i<<3);
		}
	}

	/* read literal and dist codes at once */
	var hcodes = [];
	maxlen = 1;
	for(; hcodes.length < _HLIT + _HDIST;) {
		ccode = dyn_cmap[read_bits_7(data, boff)];
		boff += ccode & 7;
		switch((ccode >>>= 3)) {
			case 16:
				w = 3 + read_bits_2(data, boff); boff += 2;
				ccode = hcodes[hcodes.length - 1];
				while(w-- > 0) hcodes.push(ccode);
				break;
			case 17:
				w = 3 + read_bits_3(data, boff); boff += 3;
				while(w-- > 0) hcodes.push(0);
				break;
			case 18:
				w = 11 + read_bits_7(data, boff); boff += 7;
				while(w -- > 0) hcodes.push(0);
				break;
			default:
				hcodes.push(ccode);
				if(maxlen < ccode) maxlen = ccode;
				break;
		}
	}

	/* build literal / length trees */
	var h1 = hcodes.slice(0, _HLIT), h2 = hcodes.slice(_HLIT);
	for(i = _HLIT; i < 286; ++i) h1[i] = 0;
	for(i = _HDIST; i < 30; ++i) h2[i] = 0;
	dyn_len_1 = build_tree(h1, dyn_lmap, 286);
	dyn_len_2 = build_tree(h2, dyn_dmap, 30);
	return boff;
}

/* return [ data, bytesRead ] */
function inflate(data, usz) {
	/* shortcircuit for empty buffer [0x03, 0x00] */
	if(data[0] == 3 && !(data[1] & 0x3)) { return [new_raw_buf(usz), 2]; }

	/* bit offset */
	var boff = 0;

	/* header includes final bit and type bits */
	var header = 0;

	var outbuf = new_unsafe_buf(usz ? usz : (1<<18));
	var woff = 0;
	var OL = outbuf.length>>>0;
	var max_len_1 = 0, max_len_2 = 0;

	while((header&1) == 0) {
		header = read_bits_3(data, boff); boff += 3;
		if((header >>> 1) == 0) {
			/* Stored block */
			if(boff & 7) boff += 8 - (boff&7);
			/* 2 bytes sz, 2 bytes bit inverse */
			var sz = data[boff>>>3] | data[(boff>>>3)+1]<<8;
			boff += 32;
			/* push sz bytes */
			if(sz > 0) {
				if(!usz && OL < woff + sz) { outbuf = realloc(outbuf, woff + sz); OL = outbuf.length; }
				while(sz-- > 0) { outbuf[woff++] = data[boff>>>3]; boff += 8; }
			}
			continue;
		} else if((header >> 1) == 1) {
			/* Fixed Huffman */
			max_len_1 = 9; max_len_2 = 5;
		} else {
			/* Dynamic Huffman */
			boff = dyn(data, boff);
			max_len_1 = dyn_len_1; max_len_2 = dyn_len_2;
		}
		for(;;) { // while(true) is apparently out of vogue in modern JS circles
			if(!usz && (OL < woff + 32767)) { outbuf = realloc(outbuf, woff + 32767); OL = outbuf.length; }
			/* ingest code and move read head */
			var bits = read_bits_n(data, boff, max_len_1);
			var code = (header>>>1) == 1 ? fix_lmap[bits] : dyn_lmap[bits];
			boff += code & 15; code >>>= 4;
			/* 0-255 are literals, 256 is end of block token, 257+ are copy tokens */
			if(((code>>>8)&0xFF) === 0) outbuf[woff++] = code;
			else if(code == 256) break;
			else {
				code -= 257;
				var len_eb = (code < 8) ? 0 : ((code-4)>>2); if(len_eb > 5) len_eb = 0;
				var tgt = woff + LEN_LN[code];
				/* length extra bits */
				if(len_eb > 0) {
					tgt += read_bits_n(data, boff, len_eb);
					boff += len_eb;
				}

				/* dist code */
				bits = read_bits_n(data, boff, max_len_2);
				code = (header>>>1) == 1 ? fix_dmap[bits] : dyn_dmap[bits];
				boff += code & 15; code >>>= 4;
				var dst_eb = (code < 4 ? 0 : (code-2)>>1);
				var dst = DST_LN[code];
				/* dist extra bits */
				if(dst_eb > 0) {
					dst += read_bits_n(data, boff, dst_eb);
					boff += dst_eb;
				}

				/* in the common case, manual byte copy is faster than TA set / Buffer copy */
				if(!usz && OL < tgt) { outbuf = realloc(outbuf, tgt + 100); OL = outbuf.length; }
				while(woff < tgt) { outbuf[woff] = outbuf[woff - dst]; ++woff; }
			}
		}
	}
	if(usz) return [outbuf, (boff+7)>>>3];
	return [outbuf.slice(0, woff), (boff+7)>>>3];
}

function _inflate(payload, usz) {
	var data = payload.slice(payload.l||0);
	var out = inflate(data, usz);
	payload.l += out[1];
	return out[0];
}

function warn_or_throw(wrn, msg) {
	if(wrn) { if(typeof console !== 'undefined') console.error(msg); }
	else throw new Error(msg);
}

function parse_zip(file, options) {
	var blob = file;
	prep_blob(blob, 0);

	var FileIndex = [], FullPaths = [];
	var o = {
		FileIndex: FileIndex,
		FullPaths: FullPaths
	};
	init_cfb(o, { root: options.root });

	/* find end of central directory, start just after signature */
	var i = blob.length - 4;
	while((blob[i] != 0x50 || blob[i+1] != 0x4b || blob[i+2] != 0x05 || blob[i+3] != 0x06) && i >= 0) --i;
	blob.l = i + 4;

	/* parse end of central directory */
	blob.l += 4;
	var fcnt = blob.read_shift(2);
	blob.l += 6;
	var start_cd = blob.read_shift(4);

	/* parse central directory */
	blob.l = start_cd;

	for(i = 0; i < fcnt; ++i) {
		/* trust local file header instead of CD entry */
		blob.l += 20;
		var csz = blob.read_shift(4);
		var usz = blob.read_shift(4);
		var namelen = blob.read_shift(2);
		var efsz = blob.read_shift(2);
		var fcsz = blob.read_shift(2);
		blob.l += 8;
		var offset = blob.read_shift(4);
		var EF = parse_extra_field(blob.slice(blob.l+namelen, blob.l+namelen+efsz));
		blob.l += namelen + efsz + fcsz;

		var L = blob.l;
		blob.l = offset + 4;
		parse_local_file(blob, csz, usz, o, EF);
		blob.l = L;
	}
	return o;
}


/* head starts just after local file header signature */
function parse_local_file(blob, csz, usz, o, EF) {
	/* [local file header] */
	blob.l += 2;
	var flags = blob.read_shift(2);
	var meth = blob.read_shift(2);
	var date = parse_dos_date(blob);

	if(flags & 0x2041) throw new Error("Unsupported ZIP encryption");
	var crc32 = blob.read_shift(4);
	var _csz = blob.read_shift(4);
	var _usz = blob.read_shift(4);

	var namelen = blob.read_shift(2);
	var efsz = blob.read_shift(2);

	// TODO: flags & (1<<11) // UTF8
	var name = ""; for(var i = 0; i < namelen; ++i) name += String.fromCharCode(blob[blob.l++]);
	if(efsz) {
		var ef = parse_extra_field(blob.slice(blob.l, blob.l + efsz));
		if((ef[0x5455]||{}).mt) date = ef[0x5455].mt;
		if(((EF||{})[0x5455]||{}).mt) date = EF[0x5455].mt;
	}
	blob.l += efsz;

	/* [encryption header] */

	/* [file data] */
	var data = blob.slice(blob.l, blob.l + _csz);
	switch(meth) {
		case 8: data = _inflateRawSync(blob, _usz); break;
		case 0: break; // TODO: scan for magic number
		default: throw new Error("Unsupported ZIP Compression method " + meth);
	}

	/* [data descriptor] */
	var wrn = false;
	if(flags & 8) {
		crc32 = blob.read_shift(4);
		if(crc32 == 0x08074b50) { crc32 = blob.read_shift(4); wrn = true; }
		_csz = blob.read_shift(4);
		_usz = blob.read_shift(4);
	}

	if(_csz != csz) warn_or_throw(wrn, "Bad compressed size: " + csz + " != " + _csz);
	if(_usz != usz) warn_or_throw(wrn, "Bad uncompressed size: " + usz + " != " + _usz);
	//var _crc32 = CRC32.buf(data, 0);
	//if((crc32>>0) != (_crc32>>0)) warn_or_throw(wrn, "Bad CRC32 checksum: " + crc32 + " != " + _crc32);
	cfb_add(o, name, data, {unsafe: true, mt: date});
}
function write_zip(cfb, options) {
	var _opts = options || {};
	var out = [], cdirs = [];
	var o = new_buf(1);
	var method = (_opts.compression ? 8 : 0), flags = 0;
	var desc = false;
	if(desc) flags |= 8;
	var i = 0, j = 0;

	var start_cd = 0, fcnt = 0;
	var root = cfb.FullPaths[0], fp = root, fi = cfb.FileIndex[0];
	var crcs = [];
	var sz_cd = 0;

	for(i = 1; i < cfb.FullPaths.length; ++i) {
		fp = cfb.FullPaths[i].slice(root.length); fi = cfb.FileIndex[i];
		if(!fi.size || !fi.content || fp == "\u0001Sh33tJ5") continue;
		var start = start_cd;

		/* TODO: CP437 filename */
		var namebuf = new_buf(fp.length);
		for(j = 0; j < fp.length; ++j) namebuf.write_shift(1, fp.charCodeAt(j) & 0x7F);
		namebuf = namebuf.slice(0, namebuf.l);
		crcs[fcnt] = CRC32.buf(fi.content, 0);

		var outbuf = fi.content;
		if(method == 8) outbuf = _deflateRawSync(outbuf);

		/* local file header */
		o = new_buf(30);
		o.write_shift(4, 0x04034b50);
		o.write_shift(2, 20);
		o.write_shift(2, flags);
		o.write_shift(2, method);
		/* TODO: last mod file time/date */
		if(fi.mt) write_dos_date(o, fi.mt);
		else o.write_shift(4, 0);
		o.write_shift(-4, (flags & 8) ? 0 : crcs[fcnt]);
		o.write_shift(4,  (flags & 8) ? 0 : outbuf.length);
		o.write_shift(4,  (flags & 8) ? 0 : fi.content.length);
		o.write_shift(2, namebuf.length);
		o.write_shift(2, 0);

		start_cd += o.length;
		out.push(o);
		start_cd += namebuf.length;
		out.push(namebuf);

		/* TODO: extra fields? */

		/* TODO: encryption header ? */

		start_cd += outbuf.length;
		out.push(outbuf);

		/* data descriptor */
		if(flags & 8) {
			o = new_buf(12);
			o.write_shift(-4, crcs[fcnt]);
			o.write_shift(4, outbuf.length);
			o.write_shift(4, fi.content.length);
			start_cd += o.l;
			out.push(o);
		}

		/* central directory */
		o = new_buf(46);
		o.write_shift(4, 0x02014b50);
		o.write_shift(2, 0);
		o.write_shift(2, 20);
		o.write_shift(2, flags);
		o.write_shift(2, method);
		o.write_shift(4, 0); /* TODO: last mod file time/date */
		o.write_shift(-4, crcs[fcnt]);

		o.write_shift(4, outbuf.length);
		o.write_shift(4, fi.content.length);
		o.write_shift(2, namebuf.length);
		o.write_shift(2, 0);
		o.write_shift(2, 0);
		o.write_shift(2, 0);
		o.write_shift(2, 0);
		o.write_shift(4, 0);
		o.write_shift(4, start);

		sz_cd += o.l;
		cdirs.push(o);
		sz_cd += namebuf.length;
		cdirs.push(namebuf);
		++fcnt;
	}

	/* end of central directory */
	o = new_buf(22);
	o.write_shift(4, 0x06054b50);
	o.write_shift(2, 0);
	o.write_shift(2, 0);
	o.write_shift(2, fcnt);
	o.write_shift(2, fcnt);
	o.write_shift(4, sz_cd);
	o.write_shift(4, start_cd);
	o.write_shift(2, 0);

	return bconcat(([bconcat((out)), bconcat(cdirs), o]));
}
var ContentTypeMap = ({
	"htm": "text/html",
	"xml": "text/xml",

	"gif": "image/gif",
	"jpg": "image/jpeg",
	"png": "image/png",

	"mso": "application/x-mso",
	"thmx": "application/vnd.ms-officetheme",
	"sh33tj5": "application/octet-stream"
});

function get_content_type(fi, fp) {
	if(fi.ctype) return fi.ctype;

	var ext = fi.name || "", m = ext.match(/\.([^\.]+)$/);
	if(m && ContentTypeMap[m[1]]) return ContentTypeMap[m[1]];

	if(fp) {
		m = (ext = fp).match(/[\.\\]([^\.\\])+$/);
		if(m && ContentTypeMap[m[1]]) return ContentTypeMap[m[1]];
	}

	return "application/octet-stream";
}

/* 76 character chunks TODO: intertwine encoding */
function write_base64_76(bstr) {
	var data = Base64.encode(bstr);
	var o = [];
	for(var i = 0; i < data.length; i+= 76) o.push(data.slice(i, i+76));
	return o.join("\r\n") + "\r\n";
}

/*
Rules for QP:
	- escape =## applies for all non-display characters and literal "="
	- space or tab at end of line must be encoded
	- \r\n newlines can be preserved, but bare \r and \n must be escaped
	- lines must not exceed 76 characters, use soft breaks =\r\n

TODO: Some files from word appear to write line extensions with bare equals:

```
<table class=3DMsoTableGrid border=3D1 cellspacing=3D0 cellpadding=3D0 width=
="70%"
```
*/
function write_quoted_printable(text) {
	var encoded = text.replace(/[\x00-\x08\x0B\x0C\x0E-\x1F\x7E-\xFF=]/g, function(c) {
		var w = c.charCodeAt(0).toString(16).toUpperCase();
		return "=" + (w.length == 1 ? "0" + w : w);
	});

	encoded = encoded.replace(/ $/mg, "=20").replace(/\t$/mg, "=09");

	if(encoded.charAt(0) == "\n") encoded = "=0D" + encoded.slice(1);
	encoded = encoded.replace(/\r(?!\n)/mg, "=0D").replace(/\n\n/mg, "\n=0A").replace(/([^\r\n])\n/mg, "$1=0A");

	var o = [], split = encoded.split("\r\n");
	for(var si = 0; si < split.length; ++si) {
		var str = split[si];
		if(str.length == 0) { o.push(""); continue; }
		for(var i = 0; i < str.length;) {
			var end = 76;
			var tmp = str.slice(i, i + end);
			if(tmp.charAt(end - 1) == "=") end --;
			else if(tmp.charAt(end - 2) == "=") end -= 2;
			else if(tmp.charAt(end - 3) == "=") end -= 3;
			tmp = str.slice(i, i + end);
			i += end;
			if(i < str.length) tmp += "=";
			o.push(tmp);
		}
	}

	return o.join("\r\n");
}
function parse_quoted_printable(data) {
	var o = [];

	/* unify long lines */
	for(var di = 0; di < data.length; ++di) {
		var line = data[di];
		while(di <= data.length && line.charAt(line.length - 1) == "=") line = line.slice(0, line.length - 1) + data[++di];
		o.push(line);
	}

	/* decode */
	for(var oi = 0; oi < o.length; ++oi) o[oi] = o[oi].replace(/[=][0-9A-Fa-f]{2}/g, function($$) { return String.fromCharCode(parseInt($$.slice(1), 16)); });
	return s2a(o.join("\r\n"));
}


function parse_mime(cfb, data, root) {
	var fname = "", cte = "", ctype = "", fdata;
	var di = 0;
	for(;di < 10; ++di) {
		var line = data[di];
		if(!line || line.match(/^\s*$/)) break;
		var m = line.match(/^(.*?):\s*([^\s].*)$/);
		if(m) switch(m[1].toLowerCase()) {
			case "content-location": fname = m[2].trim(); break;
			case "content-type": ctype = m[2].trim(); break;
			case "content-transfer-encoding": cte = m[2].trim(); break;
		}
	}
	++di;
	switch(cte.toLowerCase()) {
		case 'base64': fdata = s2a(Base64.decode(data.slice(di).join(""))); break;
		case 'quoted-printable': fdata = parse_quoted_printable(data.slice(di)); break;
		default: throw new Error("Unsupported Content-Transfer-Encoding " + cte);
	}
	var file = cfb_add(cfb, fname.slice(root.length), fdata, {unsafe: true});
	if(ctype) file.ctype = ctype;
}

function parse_mad(file, options) {
	if(a2s(file.slice(0,13)).toLowerCase() != "mime-version:") throw new Error("Unsupported MAD header");
	var root = (options && options.root || "");
	// $FlowIgnore
	var data = (has_buf && Buffer.isBuffer(file) ? file.toString("binary") : a2s(file)).split("\r\n");
	var di = 0, row = "";

	/* if root is not specified, scan for the common prefix */
	for(di = 0; di < data.length; ++di) {
		row = data[di];
		if(!/^Content-Location:/i.test(row)) continue;
		row = row.slice(row.indexOf("file"));
		if(!root) root = row.slice(0, row.lastIndexOf("/") + 1);
		if(row.slice(0, root.length) == root) continue;
		while(root.length > 0) {
			root = root.slice(0, root.length - 1);
			root = root.slice(0, root.lastIndexOf("/") + 1);
			if(row.slice(0,root.length) == root) break;
		}
	}

	var mboundary = (data[1] || "").match(/boundary="(.*?)"/);
	if(!mboundary) throw new Error("MAD cannot find boundary");
	var boundary = "--" + (mboundary[1] || "");

	var FileIndex = [], FullPaths = [];
	var o = {
		FileIndex: FileIndex,
		FullPaths: FullPaths
	};
	init_cfb(o);
	var start_di, fcnt = 0;
	for(di = 0; di < data.length; ++di) {
		var line = data[di];
		if(line !== boundary && line !== boundary + "--") continue;
		if(fcnt++) parse_mime(o, data.slice(start_di, di), root);
		start_di = di;
	}
	return o;
}

function write_mad(cfb, options) {
	var opts = options || {};
	var boundary = opts.boundary || "SheetJS";
	boundary = '------=' + boundary;

	var out = [
		'MIME-Version: 1.0',
		'Content-Type: multipart/related; boundary="' + boundary.slice(2) + '"',
		'',
		'',
		''
	];

	var root = cfb.FullPaths[0], fp = root, fi = cfb.FileIndex[0];
	for(var i = 1; i < cfb.FullPaths.length; ++i) {
		fp = cfb.FullPaths[i].slice(root.length);
		fi = cfb.FileIndex[i];
		if(!fi.size || !fi.content || fp == "\u0001Sh33tJ5") continue;

		/* Normalize filename */
		fp = fp.replace(/[\x00-\x08\x0B\x0C\x0E-\x1F\x7E-\xFF]/g, function(c) {
			return "_x" + c.charCodeAt(0).toString(16) + "_";
		}).replace(/[\u0080-\uFFFF]/g, function(u) {
			return "_u" + u.charCodeAt(0).toString(16) + "_";
		});

		/* Extract content as binary string */
		var ca = fi.content;
		// $FlowIgnore
		var cstr = has_buf && Buffer.isBuffer(ca) ? ca.toString("binary") : a2s(ca);

		/* 4/5 of first 1024 chars ascii -> quoted printable, else base64 */
		var dispcnt = 0, L = Math.min(1024, cstr.length), cc = 0;
		for(var csl = 0; csl <= L; ++csl) if((cc=cstr.charCodeAt(csl)) >= 0x20 && cc < 0x80) ++dispcnt;
		var qp = dispcnt >= L * 4 / 5;

		out.push(boundary);
		out.push('Content-Location: ' + (opts.root || 'file:///C:/SheetJS/') + fp);
		out.push('Content-Transfer-Encoding: ' + (qp ? 'quoted-printable' : 'base64'));
		out.push('Content-Type: ' + get_content_type(fi, fp));
		out.push('');

		out.push(qp ? write_quoted_printable(cstr) : write_base64_76(cstr));
	}
	out.push(boundary + '--\r\n');
	return out.join("\r\n");
}
function cfb_new(opts) {
	var o = ({});
	init_cfb(o, opts);
	return o;
}

function cfb_add(cfb, name, content, opts) {
	var unsafe = opts && opts.unsafe;
	if(!unsafe) init_cfb(cfb);
	var file = !unsafe && CFB.find(cfb, name);
	if(!file) {
		var fpath = cfb.FullPaths[0];
		if(name.slice(0, fpath.length) == fpath) fpath = name;
		else {
			if(fpath.slice(-1) != "/") fpath += "/";
			fpath = (fpath + name).replace("//","/");
		}
		file = ({name: filename(name), type: 2});
		cfb.FileIndex.push(file);
		cfb.FullPaths.push(fpath);
		if(!unsafe) CFB.utils.cfb_gc(cfb);
	}
file.content = (content);
	file.size = content ? content.length : 0;
	if(opts) {
		if(opts.CLSID) file.clsid = opts.CLSID;
		if(opts.mt) file.mt = opts.mt;
		if(opts.ct) file.ct = opts.ct;
	}
	return file;
}

function cfb_del(cfb, name) {
	init_cfb(cfb);
	var file = CFB.find(cfb, name);
	if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) {
		cfb.FileIndex.splice(j, 1);
		cfb.FullPaths.splice(j, 1);
		return true;
	}
	return false;
}

function cfb_mov(cfb, old_name, new_name) {
	init_cfb(cfb);
	var file = CFB.find(cfb, old_name);
	if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) {
		cfb.FileIndex[j].name = filename(new_name);
		cfb.FullPaths[j] = new_name;
		return true;
	}
	return false;
}

function cfb_gc(cfb) { rebuild_cfb(cfb, true); }

exports.find = find;
exports.read = read;
exports.parse = parse;
exports.write = write;
exports.writeFile = write_file;
exports.utils = {
	cfb_new: cfb_new,
	cfb_add: cfb_add,
	cfb_del: cfb_del,
	cfb_mov: cfb_mov,
	cfb_gc: cfb_gc,
	ReadShift: ReadShift,
	CheckField: CheckField,
	prep_blob: prep_blob,
	bconcat: bconcat,
	use_zlib: use_zlib,
	_deflateRaw: _deflate,
	_inflateRaw: _inflate,
	consts: consts
};

return exports;
})();

var _fs;
if(typeof require !== 'undefined') try { _fs = require('fs'); } catch(e) {}

/* normalize data for blob ctor */
function blobify(data) {
	if(typeof data === "string") return s2ab(data);
	if(Array.isArray(data)) return a2u(data);
	return data;
}
/* write or download file */
function write_dl(fname, payload, enc) {
	/*global IE_SaveFile, Blob, navigator, saveAs, document, File, chrome */
	if(typeof _fs !== 'undefined' && _fs.writeFileSync) return enc ? _fs.writeFileSync(fname, payload, enc) : _fs.writeFileSync(fname, payload);
	if(typeof Deno !== 'undefined') {
		/* in this spot, it's safe to assume typed arrays and TextEncoder/TextDecoder exist */
		if(enc && typeof payload == "string") switch(enc) {
			case "utf8": payload = new TextEncoder(enc).encode(payload); break;
			case "binary": payload = s2ab(payload); break;
			/* TODO: binary equivalent */
			default: throw new Error("Unsupported encoding " + enc);
		}
		return Deno.writeFileSync(fname, payload);
	}
	var data = (enc == "utf8") ? utf8write(payload) : payload;
if(typeof IE_SaveFile !== 'undefined') return IE_SaveFile(data, fname);
	if(typeof Blob !== 'undefined') {
		var blob = new Blob([blobify(data)], {type:"application/octet-stream"});
if(typeof navigator !== 'undefined' && navigator.msSaveBlob) return navigator.msSaveBlob(blob, fname);
if(typeof saveAs !== 'undefined') return saveAs(blob, fname);
		if(typeof URL !== 'undefined' && typeof document !== 'undefined' && document.createElement && URL.createObjectURL) {
			var url = URL.createObjectURL(blob);
if(typeof chrome === 'object' && typeof (chrome.downloads||{}).download == "function") {
				if(URL.revokeObjectURL && typeof setTimeout !== 'undefined') setTimeout(function() { URL.revokeObjectURL(url); }, 60000);
				return chrome.downloads.download({ url: url, filename: fname, saveAs: true});
			}
			var a = document.createElement("a");
			if(a.download != null) {
a.download = fname; a.href = url; document.body.appendChild(a); a.click();
document.body.removeChild(a);
				if(URL.revokeObjectURL && typeof setTimeout !== 'undefined') setTimeout(function() { URL.revokeObjectURL(url); }, 60000);
				return url;
			}
		}
	}
	// $FlowIgnore
	if(typeof $ !== 'undefined' && typeof File !== 'undefined' && typeof Folder !== 'undefined') try { // extendscript
		// $FlowIgnore
		var out = File(fname); out.open("w"); out.encoding = "binary";
		if(Array.isArray(payload)) payload = a2s(payload);
		out.write(payload); out.close(); return payload;
	} catch(e) { if(!e.message || !e.message.match(/onstruct/)) throw e; }
	throw new Error("cannot save file " + fname);
}

/* read binary data from file */
function read_binary(path) {
	if(typeof _fs !== 'undefined') return _fs.readFileSync(path);
	if(typeof Deno !== 'undefined') return Deno.readFileSync(path);
	// $FlowIgnore
	if(typeof $ !== 'undefined' && typeof File !== 'undefined' && typeof Folder !== 'undefined') try { // extendscript
		// $FlowIgnore
		var infile = File(path); infile.open("r"); infile.encoding = "binary";
		var data = infile.read(); infile.close();
		return data;
	} catch(e) { if(!e.message || !e.message.match(/onstruct/)) throw e; }
	throw new Error("Cannot access file " + path);
}
function keys(o) {
	var ks = Object.keys(o), o2 = [];
	for(var i = 0; i < ks.length; ++i) if(Object.prototype.hasOwnProperty.call(o, ks[i])) o2.push(ks[i]);
	return o2;
}

function evert_key(obj, key) {
	var o = ([]), K = keys(obj);
	for(var i = 0; i !== K.length; ++i) if(o[obj[K[i]][key]] == null) o[obj[K[i]][key]] = K[i];
	return o;
}

function evert(obj) {
	var o = ([]), K = keys(obj);
	for(var i = 0; i !== K.length; ++i) o[obj[K[i]]] = K[i];
	return o;
}

function evert_num(obj) {
	var o = ([]), K = keys(obj);
	for(var i = 0; i !== K.length; ++i) o[obj[K[i]]] = parseInt(K[i],10);
	return o;
}

function evert_arr(obj) {
	var o = ([]), K = keys(obj);
	for(var i = 0; i !== K.length; ++i) {
		if(o[obj[K[i]]] == null) o[obj[K[i]]] = [];
		o[obj[K[i]]].push(K[i]);
	}
	return o;
}

var basedate = new Date(1899, 11, 30, 0, 0, 0); // 2209161600000
function datenum(v, date1904) {
	var epoch = v.getTime();
	if(date1904) epoch -= 1462*24*60*60*1000;
	var dnthresh = basedate.getTime() + (v.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
	return (epoch - dnthresh) / (24 * 60 * 60 * 1000);
}
var refdate = new Date();
var dnthresh = basedate.getTime() + (refdate.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
var refoffset = refdate.getTimezoneOffset();
function numdate(v) {
	var out = new Date();
	out.setTime(v * 24 * 60 * 60 * 1000 + dnthresh);
	if (out.getTimezoneOffset() !== refoffset) {
		out.setTime(out.getTime() + (out.getTimezoneOffset() - refoffset) * 60000);
	}
	return out;
}

/* ISO 8601 Duration */
function parse_isodur(s) {
	var sec = 0, mt = 0, time = false;
	var m = s.match(/P([0-9\.]+Y)?([0-9\.]+M)?([0-9\.]+D)?T([0-9\.]+H)?([0-9\.]+M)?([0-9\.]+S)?/);
	if(!m) throw new Error("|" + s + "| is not an ISO8601 Duration");
	for(var i = 1; i != m.length; ++i) {
		if(!m[i]) continue;
		mt = 1;
		if(i > 3) time = true;
		switch(m[i].slice(m[i].length-1)) {
			case 'Y':
				throw new Error("Unsupported ISO Duration Field: " + m[i].slice(m[i].length-1));
			case 'D': mt *= 24;
				/* falls through */
			case 'H': mt *= 60;
				/* falls through */
			case 'M':
				if(!time) throw new Error("Unsupported ISO Duration Field: M");
				else mt *= 60;
				/* falls through */
			case 'S': break;
		}
		sec += mt * parseInt(m[i], 10);
	}
	return sec;
}

var good_pd_date = new Date('2017-02-19T19:06:09.000Z');
if(isNaN(good_pd_date.getFullYear())) good_pd_date = new Date('2/19/17');
var good_pd = good_pd_date.getFullYear() == 2017;
/* parses a date as a local date */
function parseDate(str, fixdate) {
	var d = new Date(str);
	if(good_pd) {
if(fixdate > 0) d.setTime(d.getTime() + d.getTimezoneOffset() * 60 * 1000);
		else if(fixdate < 0) d.setTime(d.getTime() - d.getTimezoneOffset() * 60 * 1000);
		return d;
	}
	if(str instanceof Date) return str;
	if(good_pd_date.getFullYear() == 1917 && !isNaN(d.getFullYear())) {
		var s = d.getFullYear();
		if(str.indexOf("" + s) > -1) return d;
		d.setFullYear(d.getFullYear() + 100); return d;
	}
	var n = str.match(/\d+/g)||["2017","2","19","0","0","0"];
	var out = new Date(+n[0], +n[1] - 1, +n[2], (+n[3]||0), (+n[4]||0), (+n[5]||0));
	if(str.indexOf("Z") > -1) out = new Date(out.getTime() - out.getTimezoneOffset() * 60 * 1000);
	return out;
}

function cc2str(arr, debomit) {
	if(has_buf && Buffer.isBuffer(arr)) {
		if(debomit) {
			if(arr[0] == 0xFF && arr[1] == 0xFE) return arr.slice(2).toString("utf16le");
			if(arr[1] == 0xFE && arr[2] == 0xFF) return utf16beread(arr.slice(2).toString("binary"));
		}
		return arr.toString("binary");
	}
	/* TODO: investigate performance degradation of TextEncoder in Edge 13 */
	var o = [];
	for(var i = 0; i != arr.length; ++i) o.push(String.fromCharCode(arr[i]));
	return o.join("");
}

function dup(o) {
	if(typeof JSON != 'undefined' && !Array.isArray(o)) return JSON.parse(JSON.stringify(o));
	if(typeof o != 'object' || o == null) return o;
	if(o instanceof Date) return new Date(o.getTime());
	var out = {};
	for(var k in o) if(Object.prototype.hasOwnProperty.call(o, k)) out[k] = dup(o[k]);
	return out;
}

function fill(c,l) { var o = ""; while(o.length < l) o+=c; return o; }

/* TODO: stress test */
function fuzzynum(s) {
	var v = Number(s);
	if(!isNaN(v)) return isFinite(v) ? v : NaN;
	if(!/\d/.test(s)) return v;
	var wt = 1;
	var ss = s.replace(/([\d]),([\d])/g,"$1$2").replace(/[$]/g,"").replace(/[%]/g, function() { wt *= 100; return "";});
	if(!isNaN(v = Number(ss))) return v / wt;
	ss = ss.replace(/[(](.*)[)]/,function($$, $1) { wt = -wt; return $1;});
	if(!isNaN(v = Number(ss))) return v / wt;
	return v;
}
var lower_months = ['january', 'february', 'march', 'april', 'may', 'june', 'july', 'august', 'september', 'october', 'november', 'december'];
function fuzzydate(s) {
	var o = new Date(s), n = new Date(NaN);
	var y = o.getYear(), m = o.getMonth(), d = o.getDate();
	if(isNaN(d)) return n;
	var lower = s.toLowerCase();
	if(lower.match(/jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec/)) {
		lower = lower.replace(/[^a-z]/g,"").replace(/([^a-z]|^)[ap]m?([^a-z]|$)/,"");
		if(lower.length > 3 && lower_months.indexOf(lower) == -1) return n;
	} else if(lower.match(/[a-z]/)) return n;
	if(y < 0 || y > 8099) return n;
	if((m > 0 || d > 1) && y != 101) return o;
	if(s.match(/[^-0-9:,\/\\]/)) return n;
	return o;
}

var safe_split_regex = "abacaba".split(/(:?b)/i).length == 5;
function split_regex(str, re, def) {
	if(safe_split_regex || typeof re == "string") return str.split(re);
	var p = str.split(re), o = [p[0]];
	for(var i = 1; i < p.length; ++i) { o.push(def); o.push(p[i]); }
	return o;
}
function getdatastr(data) {
	if(!data) return null;
	if(data.content && data.type) return cc2str(data.content, true);
	if(data.data) return debom(data.data);
	if(data.asNodeBuffer && has_buf) return debom(data.asNodeBuffer().toString('binary'));
	if(data.asBinary) return debom(data.asBinary());
	if(data._data && data._data.getContent) return debom(cc2str(Array.prototype.slice.call(data._data.getContent(),0)));
	return null;
}

function getdatabin(data) {
	if(!data) return null;
	if(data.data) return char_codes(data.data);
	if(data.asNodeBuffer && has_buf) return data.asNodeBuffer();
	if(data._data && data._data.getContent) {
		var o = data._data.getContent();
		if(typeof o == "string") return char_codes(o);
		return Array.prototype.slice.call(o);
	}
	if(data.content && data.type) return data.content;
	return null;
}

function getdata(data) { return (data && data.name.slice(-4) === ".bin") ? getdatabin(data) : getdatastr(data); }

/* Part 2 Section 10.1.2 "Mapping Content Types" Names are case-insensitive */
/* OASIS does not comment on filename case sensitivity */
function safegetzipfile(zip, file) {
	var k = zip.FullPaths || keys(zip.files);
	var f = file.toLowerCase().replace(/[\/]/g, '\\'), g = f.replace(/\\/g,'\/');
	for(var i=0; i<k.length; ++i) {
		var n = k[i].replace(/^Root Entry[\/]/,"").toLowerCase();
		if(f == n || g == n) return zip.files ? zip.files[k[i]] : zip.FileIndex[i];
	}
	return null;
}

function getzipfile(zip, file) {
	var o = safegetzipfile(zip, file);
	if(o == null) throw new Error("Cannot find file " + file + " in zip");
	return o;
}

function getzipdata(zip, file, safe) {
	if(!safe) return getdata(getzipfile(zip, file));
	if(!file) return null;
	try { return getzipdata(zip, file); } catch(e) { return null; }
}

function getzipstr(zip, file, safe) {
	if(!safe) return getdatastr(getzipfile(zip, file));
	if(!file) return null;
	try { return getzipstr(zip, file); } catch(e) { return null; }
}

function getzipbin(zip, file, safe) {
	if(!safe) return getdatabin(getzipfile(zip, file));
	if(!file) return null;
	try { return getzipbin(zip, file); } catch(e) { return null; }
}

function zipentries(zip) {
	var k = zip.FullPaths || keys(zip.files), o = [];
	for(var i = 0; i < k.length; ++i) if(k[i].slice(-1) != '/') o.push(k[i].replace(/^Root Entry[\/]/, ""));
	return o.sort();
}

function zip_add_file(zip, path, content) {
	if(zip.FullPaths) {
		if(typeof content == "string") {
			var res;
			if(has_buf) res = Buffer_from(content);
			/* TODO: investigate performance in Edge 13 */
			//else if(typeof TextEncoder !== "undefined") res = new TextEncoder().encode(content);
			else res = utf8decode(content);
			return CFB.utils.cfb_add(zip, path, res);
		}
		CFB.utils.cfb_add(zip, path, content);
	}
	else zip.file(path, content);
}

function zip_new() { return CFB.utils.cfb_new(); }

function zip_read(d, o) {
	switch(o.type) {
		case "base64": return CFB.read(d, { type: "base64" });
		case "binary": return CFB.read(d, { type: "binary" });
		case "buffer": case "array": return CFB.read(d, { type: "buffer" });
	}
	throw new Error("Unrecognized type " + o.type);
}

function resolve_path(path, base) {
	if(path.charAt(0) == "/") return path.slice(1);
	var result = base.split('/');
	if(base.slice(-1) != "/") result.pop(); // folder path
	var target = path.split('/');
	while (target.length !== 0) {
		var step = target.shift();
		if (step === '..') result.pop();
		else if (step !== '.') result.push(step);
	}
	return result.join('/');
}
var XML_HEADER = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>\r\n';
var attregexg=/([^"\s?>\/]+)\s*=\s*((?:")([^"]*)(?:")|(?:')([^']*)(?:')|([^'">\s]+))/g;
var tagregex=/<[\/\?]?[a-zA-Z0-9:_-]+(?:\s+[^"\s?>\/]+\s*=\s*(?:"[^"]*"|'[^']*'|[^'">\s=]+))*\s*[\/\?]?>/mg;

if(!(XML_HEADER.match(tagregex))) tagregex = /<[^>]*>/g;
var nsregex=/<\w*:/, nsregex2 = /<(\/?)\w+:/;
function parsexmltag(tag, skip_root, skip_LC) {
	var z = ({});
	var eq = 0, c = 0;
	for(; eq !== tag.length; ++eq) if((c = tag.charCodeAt(eq)) === 32 || c === 10 || c === 13) break;
	if(!skip_root) z[0] = tag.slice(0, eq);
	if(eq === tag.length) return z;
	var m = tag.match(attregexg), j=0, v="", i=0, q="", cc="", quot = 1;
	if(m) for(i = 0; i != m.length; ++i) {
		cc = m[i];
		for(c=0; c != cc.length; ++c) if(cc.charCodeAt(c) === 61) break;
		q = cc.slice(0,c).trim();
		while(cc.charCodeAt(c+1) == 32) ++c;
		quot = ((eq=cc.charCodeAt(c+1)) == 34 || eq == 39) ? 1 : 0;
		v = cc.slice(c+1+quot, cc.length-quot);
		for(j=0;j!=q.length;++j) if(q.charCodeAt(j) === 58) break;
		if(j===q.length) {
			if(q.indexOf("_") > 0) q = q.slice(0, q.indexOf("_")); // from ods
			z[q] = v;
			if(!skip_LC) z[q.toLowerCase()] = v;
		}
		else {
			var k = (j===5 && q.slice(0,5)==="xmlns"?"xmlns":"")+q.slice(j+1);
			if(z[k] && q.slice(j-3,j) == "ext") continue; // from ods
			z[k] = v;
			if(!skip_LC) z[k.toLowerCase()] = v;
		}
	}
	return z;
}
function strip_ns(x) { return x.replace(nsregex2, "<$1"); }

var encodings = {
	'&quot;': '"',
	'&apos;': "'",
	'&gt;': '>',
	'&lt;': '<',
	'&amp;': '&'
};
var rencoding = evert(encodings);
//var rencstr = "&<>'\"".split("");

// TODO: CP remap (need to read file version to determine OS)
var unescapexml = (function() {
	/* 22.4.2.4 bstr (Basic String) */
	var encregex = /&(?:quot|apos|gt|lt|amp|#x?([\da-fA-F]+));/ig, coderegex = /_x([\da-fA-F]{4})_/ig;
	return function unescapexml(text) {
		var s = text + '', i = s.indexOf("<![CDATA[");
		if(i == -1) return s.replace(encregex, function($$, $1) { return encodings[$$]||String.fromCharCode(parseInt($1,$$.indexOf("x")>-1?16:10))||$$; }).replace(coderegex,function(m,c) {return String.fromCharCode(parseInt(c,16));});
		var j = s.indexOf("]]>");
		return unescapexml(s.slice(0, i)) + s.slice(i+9,j) + unescapexml(s.slice(j+3));
	};
})();

var decregex=/[&<>'"]/g, charegex = /[\u0000-\u0008\u000b-\u001f]/g;
function escapexml(text){
	var s = text + '';
	return s.replace(decregex, function(y) { return rencoding[y]; }).replace(charegex,function(s) { return "_x" + ("000"+s.charCodeAt(0).toString(16)).slice(-4) + "_";});
}
function escapexmltag(text){ return escapexml(text).replace(/ /g,"_x0020_"); }

var htmlcharegex = /[\u0000-\u001f]/g;
function escapehtml(text){
	var s = text + '';
	return s.replace(decregex, function(y) { return rencoding[y]; }).replace(/\n/g, "<br/>").replace(htmlcharegex,function(s) { return "&#x" + ("000"+s.charCodeAt(0).toString(16)).slice(-4) + ";"; });
}

function escapexlml(text){
	var s = text + '';
	return s.replace(decregex, function(y) { return rencoding[y]; }).replace(htmlcharegex,function(s) { return "&#x" + (s.charCodeAt(0).toString(16)).toUpperCase() + ";"; });
}

/* TODO: handle codepages */
var xlml_fixstr = (function() {
	var entregex = /&#(\d+);/g;
	function entrepl($$,$1) { return String.fromCharCode(parseInt($1,10)); }
	return function xlml_fixstr(str) { return str.replace(entregex,entrepl); };
})();
function xlml_unfixstr(str) { return str.replace(/(\r\n|[\r\n])/g,"\&#10;"); }

function parsexmlbool(value) {
	switch(value) {
		case 1: case true: case '1': case 'true': case 'TRUE': return true;
		/* case '0': case 'false': case 'FALSE':*/
		default: return false;
	}
}

var utf8read = function utf8reada(orig) {
	var out = "", i = 0, c = 0, d = 0, e = 0, f = 0, w = 0;
	while (i < orig.length) {
		c = orig.charCodeAt(i++);
		if (c < 128) { out += String.fromCharCode(c); continue; }
		d = orig.charCodeAt(i++);
		if (c>191 && c<224) { f = ((c & 31) << 6); f |= (d & 63); out += String.fromCharCode(f); continue; }
		e = orig.charCodeAt(i++);
		if (c < 240) { out += String.fromCharCode(((c & 15) << 12) | ((d & 63) << 6) | (e & 63)); continue; }
		f = orig.charCodeAt(i++);
		w = (((c & 7) << 18) | ((d & 63) << 12) | ((e & 63) << 6) | (f & 63))-65536;
		out += String.fromCharCode(0xD800 + ((w>>>10)&1023));
		out += String.fromCharCode(0xDC00 + (w&1023));
	}
	return out;
};

var utf8write = function(orig) {
	var out = [], i = 0, c = 0, d = 0;
	while(i < orig.length) {
		c = orig.charCodeAt(i++);
		switch(true) {
			case c < 128: out.push(String.fromCharCode(c)); break;
			case c < 2048:
				out.push(String.fromCharCode(192 + (c >> 6)));
				out.push(String.fromCharCode(128 + (c & 63)));
				break;
			case c >= 55296 && c < 57344:
				c -= 55296; d = orig.charCodeAt(i++) - 56320 + (c<<10);
				out.push(String.fromCharCode(240 + ((d >>18) & 7)));
				out.push(String.fromCharCode(144 + ((d >>12) & 63)));
				out.push(String.fromCharCode(128 + ((d >> 6) & 63)));
				out.push(String.fromCharCode(128 + (d & 63)));
				break;
			default:
				out.push(String.fromCharCode(224 + (c >> 12)));
				out.push(String.fromCharCode(128 + ((c >> 6) & 63)));
				out.push(String.fromCharCode(128 + (c & 63)));
		}
	}
	return out.join("");
};

if(has_buf) {
	var utf8readb = function utf8readb(data) {
		var out = Buffer.alloc(2*data.length), w, i, j = 1, k = 0, ww=0, c;
		for(i = 0; i < data.length; i+=j) {
			j = 1;
			if((c=data.charCodeAt(i)) < 128) w = c;
			else if(c < 224) { w = (c&31)*64+(data.charCodeAt(i+1)&63); j=2; }
			else if(c < 240) { w=(c&15)*4096+(data.charCodeAt(i+1)&63)*64+(data.charCodeAt(i+2)&63); j=3; }
			else { j = 4;
				w = (c & 7)*262144+(data.charCodeAt(i+1)&63)*4096+(data.charCodeAt(i+2)&63)*64+(data.charCodeAt(i+3)&63);
				w -= 65536; ww = 0xD800 + ((w>>>10)&1023); w = 0xDC00 + (w&1023);
			}
			if(ww !== 0) { out[k++] = ww&255; out[k++] = ww>>>8; ww = 0; }
			out[k++] = w%256; out[k++] = w>>>8;
		}
		return out.slice(0,k).toString('ucs2');
	};
	var corpus = "foo bar baz\u00e2\u0098\u0083\u00f0\u009f\u008d\u00a3";
	if(utf8read(corpus) == utf8readb(corpus)) utf8read = utf8readb;
	var utf8readc = function utf8readc(data) { return Buffer_from(data, 'binary').toString('utf8'); };
	if(utf8read(corpus) == utf8readc(corpus)) utf8read = utf8readc;

	utf8write = function(data) { return Buffer_from(data, 'utf8').toString("binary"); };
}

// matches <foo>...</foo> extracts content
var matchtag = (function() {
	var mtcache = ({});
	return function matchtag(f,g) {
		var t = f+"|"+(g||"");
		if(mtcache[t]) return mtcache[t];
		return (mtcache[t] = new RegExp('<(?:\\w+:)?'+f+'(?: xml:space="preserve")?(?:[^>]*)>([\\s\\S]*?)</(?:\\w+:)?'+f+'>',((g||""))));
	};
})();

var htmldecode = (function() {
	var entities = [
		['nbsp', ' '], ['middot', '·'],
		['quot', '"'], ['apos', "'"], ['gt',   '>'], ['lt',   '<'], ['amp',  '&']
	].map(function(x) { return [new RegExp('&' + x[0] + ';', "ig"), x[1]]; });
	return function htmldecode(str) {
		var o = str
				// Remove new lines and spaces from start of content
				.replace(/^[\t\n\r ]+/, "")
				// Remove new lines and spaces from end of content
				.replace(/[\t\n\r ]+$/,"")
				// Added line which removes any white space characters after and before html tags
				.replace(/>\s+/g,">").replace(/\s+</g,"<")
				// Replace remaining new lines and spaces with space
				.replace(/[\t\n\r ]+/g, " ")
				// Replace <br> tags with new lines
				.replace(/<\s*[bB][rR]\s*\/?>/g,"\n")
				// Strip HTML elements
				.replace(/<[^>]*>/g,"");
		for(var i = 0; i < entities.length; ++i) o = o.replace(entities[i][0], entities[i][1]);
		return o;
	};
})();

var vtregex = (function(){ var vt_cache = {};
	return function vt_regex(bt) {
		if(vt_cache[bt] !== undefined) return vt_cache[bt];
		return (vt_cache[bt] = new RegExp("<(?:vt:)?" + bt + ">([\\s\\S]*?)</(?:vt:)?" + bt + ">", 'g') );
};})();
var vtvregex = /<\/?(?:vt:)?variant>/g, vtmregex = /<(?:vt:)([^>]*)>([\s\S]*)</;
function parseVector(data, opts) {
	var h = parsexmltag(data);

	var matches = data.match(vtregex(h.baseType))||[];
	var res = [];
	if(matches.length != h.size) {
		if(opts.WTF) throw new Error("unexpected vector length " + matches.length + " != " + h.size);
		return res;
	}
	matches.forEach(function(x) {
		var v = x.replace(vtvregex,"").match(vtmregex);
		if(v) res.push({v:utf8read(v[2]), t:v[1]});
	});
	return res;
}

var wtregex = /(^\s|\s$|\n)/;
function writetag(f,g) { return '<' + f + (g.match(wtregex)?' xml:space="preserve"' : "") + '>' + g + '</' + f + '>'; }

function wxt_helper(h) { return keys(h).map(function(k) { return " " + k + '="' + h[k] + '"';}).join(""); }
function writextag(f,g,h) { return '<' + f + ((h != null) ? wxt_helper(h) : "") + ((g != null) ? (g.match(wtregex)?' xml:space="preserve"' : "") + '>' + g + '</' + f : "/") + '>';}

function write_w3cdtf(d, t) { try { return d.toISOString().replace(/\.\d*/,""); } catch(e) { if(t) throw e; } return ""; }

function write_vt(s, xlsx) {
	switch(typeof s) {
		case 'string':
			var o = writextag('vt:lpwstr', escapexml(s));
			if(xlsx) o = o.replace(/&quot;/g, "_x0022_");
			return o;
		case 'number': return writextag((s|0)==s?'vt:i4':'vt:r8', escapexml(String(s)));
		case 'boolean': return writextag('vt:bool',s?'true':'false');
	}
	if(s instanceof Date) return writextag('vt:filetime', write_w3cdtf(s));
	throw new Error("Unable to serialize " + s);
}

function xlml_normalize(d) {
	if(has_buf && Buffer.isBuffer(d)) return d.toString('utf8');
	if(typeof d === 'string') return d;
	/* duktape */
	if(typeof Uint8Array !== 'undefined' && d instanceof Uint8Array) return utf8read(a2s(ab2a(d)));
	throw new Error("Bad input format: expected Buffer or string");
}
/* UOS uses CJK in tags */
var xlmlregex = /<(\/?)([^\s?><!\/:]*:|)([^\s?<>:\/]+)(?:[\s?:\/][^>]*)?>/mg;
//var xlmlregex = /<(\/?)([a-z0-9]*:|)(\w+)[^>]*>/mg;

var XMLNS = ({
	CORE_PROPS: 'http://schemas.openxmlformats.org/package/2006/metadata/core-properties',
	CUST_PROPS: "http://schemas.openxmlformats.org/officeDocument/2006/custom-properties",
	EXT_PROPS: "http://schemas.openxmlformats.org/officeDocument/2006/extended-properties",
	CT: 'http://schemas.openxmlformats.org/package/2006/content-types',
	RELS: 'http://schemas.openxmlformats.org/package/2006/relationships',
	TCMNT: 'http://schemas.microsoft.com/office/spreadsheetml/2018/threadedcomments',
	'dc': 'http://purl.org/dc/elements/1.1/',
	'dcterms': 'http://purl.org/dc/terms/',
	'dcmitype': 'http://purl.org/dc/dcmitype/',
	'mx': 'http://schemas.microsoft.com/office/mac/excel/2008/main',
	'r': 'http://schemas.openxmlformats.org/officeDocument/2006/relationships',
	'sjs': 'http://schemas.openxmlformats.org/package/2006/sheetjs/core-properties',
	'vt': 'http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes',
	'xsi': 'http://www.w3.org/2001/XMLSchema-instance',
	'xsd': 'http://www.w3.org/2001/XMLSchema'
});

var XMLNS_main = [
	'http://schemas.openxmlformats.org/spreadsheetml/2006/main',
	'http://purl.oclc.org/ooxml/spreadsheetml/main',
	'http://schemas.microsoft.com/office/excel/2006/main',
	'http://schemas.microsoft.com/office/excel/2006/2'
];

var XLMLNS = ({
	'o':    'urn:schemas-microsoft-com:office:office',
	'x':    'urn:schemas-microsoft-com:office:excel',
	'ss':   'urn:schemas-microsoft-com:office:spreadsheet',
	'dt':   'uuid:C2F41010-65B3-11d1-A29F-00AA00C14882',
	'mv':   'http://macVmlSchemaUri',
	'v':    'urn:schemas-microsoft-com:vml',
	'html': 'http://www.w3.org/TR/REC-html40'
});
function read_double_le(b, idx) {
	var s = 1 - 2 * (b[idx + 7] >>> 7);
	var e = ((b[idx + 7] & 0x7f) << 4) + ((b[idx + 6] >>> 4) & 0x0f);
	var m = (b[idx+6]&0x0f);
	for(var i = 5; i >= 0; --i) m = m * 256 + b[idx + i];
	if(e == 0x7ff) return m == 0 ? (s * Infinity) : NaN;
	if(e == 0) e = -1022;
	else { e -= 1023; m += Math.pow(2,52); }
	return s * Math.pow(2, e - 52) * m;
}

function write_double_le(b, v, idx) {
	var bs = ((((v < 0) || (1/v == -Infinity)) ? 1 : 0) << 7), e = 0, m = 0;
	var av = bs ? (-v) : v;
	if(!isFinite(av)) { e = 0x7ff; m = isNaN(v) ? 0x6969 : 0; }
	else if(av == 0) e = m = 0;
	else {
		e = Math.floor(Math.log(av) / Math.LN2);
		m = av * Math.pow(2, 52 - e);
		if((e <= -1023) && (!isFinite(m) || (m < Math.pow(2,52)))) { e = -1022; }
		else { m -= Math.pow(2,52); e+=1023; }
	}
	for(var i = 0; i <= 5; ++i, m/=256) b[idx + i] = m & 0xff;
	b[idx + 6] = ((e & 0x0f) << 4) | (m & 0xf);
	b[idx + 7] = (e >> 4) | bs;
}

var __toBuffer = function(bufs) { var x=[],w=10240; for(var i=0;i<bufs[0].length;++i) if(bufs[0][i]) for(var j=0,L=bufs[0][i].length;j<L;j+=w) x.push.apply(x, bufs[0][i].slice(j,j+w)); return x; };
var ___toBuffer = __toBuffer;
var __utf16le = function(b,s,e) { var ss=[]; for(var i=s; i<e; i+=2) ss.push(String.fromCharCode(__readUInt16LE(b,i))); return ss.join("").replace(chr0,''); };
var ___utf16le = __utf16le;
var __hexlify = function(b,s,l) { var ss=[]; for(var i=s; i<s+l; ++i) ss.push(("0" + b[i].toString(16)).slice(-2)); return ss.join(""); };
var ___hexlify = __hexlify;
var __utf8 = function(b,s,e) { var ss=[]; for(var i=s; i<e; i++) ss.push(String.fromCharCode(__readUInt8(b,i))); return ss.join(""); };
var ___utf8 = __utf8;
var __lpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
var ___lpstr = __lpstr;
var __cpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
var ___cpstr = __cpstr;
var __lpwstr = function(b,i) { var len = 2*__readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
var ___lpwstr = __lpwstr;
var __lpp4, ___lpp4;
__lpp4 = ___lpp4 = function lpp4_(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf16le(b, i+4,i+4+len) : "";};
var __8lpp4 = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len) : "";};
var ___8lpp4 = __8lpp4;
var __double, ___double;
__double = ___double = function(b, idx) { return read_double_le(b, idx);};
var is_buf = function is_buf_a(a) { return Array.isArray(a) || (typeof Uint8Array !== "undefined" && a instanceof Uint8Array); };

if(has_buf) {
	__utf16le = function(b,s,e) { if(!Buffer.isBuffer(b)) return ___utf16le(b,s,e); return b.toString('utf16le',s,e).replace(chr0,'')/*.replace(chr1,'!')*/; };
	__hexlify = function(b,s,l) { return Buffer.isBuffer(b) ? b.toString('hex',s,s+l) : ___hexlify(b,s,l); };
	__lpstr = function lpstr_b(b, i) { if(!Buffer.isBuffer(b)) return ___lpstr(b, i); var len = b.readUInt32LE(i); return len > 0 ? b.toString('utf8',i+4,i+4+len-1) : "";};
	__cpstr = function cpstr_b(b, i) { if(!Buffer.isBuffer(b)) return ___cpstr(b, i); var len = b.readUInt32LE(i); return len > 0 ? b.toString('utf8',i+4,i+4+len-1) : "";};
	__lpwstr = function lpwstr_b(b, i) { if(!Buffer.isBuffer(b)) return ___lpwstr(b, i); var len = 2*b.readUInt32LE(i); return b.toString('utf16le',i+4,i+4+len-1);};
	__lpp4 = function lpp4_b(b, i) { if(!Buffer.isBuffer(b)) return ___lpp4(b, i); var len = b.readUInt32LE(i); return b.toString('utf16le',i+4,i+4+len);};
	__8lpp4 = function lpp4_8b(b, i) { if(!Buffer.isBuffer(b)) return ___8lpp4(b, i); var len = b.readUInt32LE(i); return b.toString('utf8',i+4,i+4+len);};
	__utf8 = function utf8_b(b, s, e) { return (Buffer.isBuffer(b)) ? b.toString('utf8',s,e) : ___utf8(b,s,e); };
	__toBuffer = function(bufs) { return (bufs[0].length > 0 && Buffer.isBuffer(bufs[0][0])) ? Buffer.concat(bufs[0].map(function(x) { return Buffer.isBuffer(x) ? x : Buffer_from(x); })) : ___toBuffer(bufs);};
	bconcat = function(bufs) { return Buffer.concat(bufs.map(function(buf) { return Buffer.isBuffer(buf) ? buf : Buffer_from(buf); })); };
	__double = function double_(b, i) { if(Buffer.isBuffer(b)) return b.readDoubleLE(i); return ___double(b,i); };
	is_buf = function is_buf_b(a) { return Buffer.isBuffer(a) || Array.isArray(a) || (typeof Uint8Array !== "undefined" && a instanceof Uint8Array); };
}

/* from js-xls */
function cpdoit() {
	__utf16le = function(b,s,e) { return $cptable.utils.decode(1200, b.slice(s,e)).replace(chr0, ''); };
	__utf8 = function(b,s,e) { return $cptable.utils.decode(65001, b.slice(s,e)); };
	__lpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? $cptable.utils.decode(current_ansi, b.slice(i+4, i+4+len-1)) : "";};
	__cpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? $cptable.utils.decode(current_codepage, b.slice(i+4, i+4+len-1)) : "";};
	__lpwstr = function(b,i) { var len = 2*__readUInt32LE(b,i); return len > 0 ? $cptable.utils.decode(1200, b.slice(i+4,i+4+len-1)) : "";};
	__lpp4 = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? $cptable.utils.decode(1200, b.slice(i+4,i+4+len)) : "";};
	__8lpp4 = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? $cptable.utils.decode(65001, b.slice(i+4,i+4+len)) : "";};
}
if(typeof $cptable !== 'undefined') cpdoit();

var __readUInt8 = function(b, idx) { return b[idx]; };
var __readUInt16LE = function(b, idx) { return (b[idx+1]*(1<<8))+b[idx]; };
var __readInt16LE = function(b, idx) { var u = (b[idx+1]*(1<<8))+b[idx]; return (u < 0x8000) ? u : ((0xffff - u + 1) * -1); };
var __readUInt32LE = function(b, idx) { return b[idx+3]*(1<<24)+(b[idx+2]<<16)+(b[idx+1]<<8)+b[idx]; };
var __readInt32LE = function(b, idx) { return (b[idx+3]<<24)|(b[idx+2]<<16)|(b[idx+1]<<8)|b[idx]; };
var __readInt32BE = function(b, idx) { return (b[idx]<<24)|(b[idx+1]<<16)|(b[idx+2]<<8)|b[idx+3]; };

function ReadShift(size, t) {
	var o="", oI, oR, oo=[], w, vv, i, loc;
	switch(t) {
		case 'dbcs':
			loc = this.l;
			if(has_buf && Buffer.isBuffer(this)) o = this.slice(this.l, this.l+2*size).toString("utf16le");
			else for(i = 0; i < size; ++i) { o+=String.fromCharCode(__readUInt16LE(this, loc)); loc+=2; }
			size *= 2;
			break;

		case 'utf8': o = __utf8(this, this.l, this.l + size); break;
		case 'utf16le': size *= 2; o = __utf16le(this, this.l, this.l + size); break;

		case 'wstr':
			if(typeof $cptable !== 'undefined') o = $cptable.utils.decode(current_codepage, this.slice(this.l, this.l+2*size));
			else return ReadShift.call(this, size, 'dbcs');
			size = 2 * size; break;

		/* [MS-OLEDS] 2.1.4 LengthPrefixedAnsiString */
		case 'lpstr-ansi': o = __lpstr(this, this.l); size = 4 + __readUInt32LE(this, this.l); break;
		case 'lpstr-cp': o = __cpstr(this, this.l); size = 4 + __readUInt32LE(this, this.l); break;
		/* [MS-OLEDS] 2.1.5 LengthPrefixedUnicodeString */
		case 'lpwstr': o = __lpwstr(this, this.l); size = 4 + 2 * __readUInt32LE(this, this.l); break;
		/* [MS-OFFCRYPTO] 2.1.2 Length-Prefixed Padded Unicode String (UNICODE-LP-P4) */
		case 'lpp4': size = 4 +  __readUInt32LE(this, this.l); o = __lpp4(this, this.l); if(size & 0x02) size += 2; break;
		/* [MS-OFFCRYPTO] 2.1.3 Length-Prefixed UTF-8 String (UTF-8-LP-P4) */
		case '8lpp4': size = 4 +  __readUInt32LE(this, this.l); o = __8lpp4(this, this.l); if(size & 0x03) size += 4 - (size & 0x03); break;

		case 'cstr': size = 0; o = "";
			while((w=__readUInt8(this, this.l + size++))!==0) oo.push(_getchar(w));
			o = oo.join(""); break;
		case '_wstr': size = 0; o = "";
			while((w=__readUInt16LE(this,this.l +size))!==0){oo.push(_getchar(w));size+=2;}
			size+=2; o = oo.join(""); break;

		/* sbcs and dbcs support continue records in the SST way TODO codepages */
		case 'dbcs-cont': o = ""; loc = this.l;
			for(i = 0; i < size; ++i) {
				if(this.lens && this.lens.indexOf(loc) !== -1) {
					w = __readUInt8(this, loc);
					this.l = loc + 1;
					vv = ReadShift.call(this, size-i, w ? 'dbcs-cont' : 'sbcs-cont');
					return oo.join("") + vv;
				}
				oo.push(_getchar(__readUInt16LE(this, loc)));
				loc+=2;
			} o = oo.join(""); size *= 2; break;

		case 'cpstr':
			if(typeof $cptable !== 'undefined') {
				o = $cptable.utils.decode(current_codepage, this.slice(this.l, this.l + size));
				break;
			}
		/* falls through */
		case 'sbcs-cont': o = ""; loc = this.l;
			for(i = 0; i != size; ++i) {
				if(this.lens && this.lens.indexOf(loc) !== -1) {
					w = __readUInt8(this, loc);
					this.l = loc + 1;
					vv = ReadShift.call(this, size-i, w ? 'dbcs-cont' : 'sbcs-cont');
					return oo.join("") + vv;
				}
				oo.push(_getchar(__readUInt8(this, loc)));
				loc+=1;
			} o = oo.join(""); break;

		default:
	switch(size) {
		case 1: oI = __readUInt8(this, this.l); this.l++; return oI;
		case 2: oI = (t === 'i' ? __readInt16LE : __readUInt16LE)(this, this.l); this.l += 2; return oI;
		case 4: case -4:
			if(t === 'i' || ((this[this.l+3] & 0x80)===0)) { oI = ((size > 0) ? __readInt32LE : __readInt32BE)(this, this.l); this.l += 4; return oI; }
			else { oR = __readUInt32LE(this, this.l); this.l += 4; } return oR;
		case 8: case -8:
			if(t === 'f') {
				if(size == 8) oR = __double(this, this.l);
				else oR = __double([this[this.l+7],this[this.l+6],this[this.l+5],this[this.l+4],this[this.l+3],this[this.l+2],this[this.l+1],this[this.l+0]], 0);
				this.l += 8; return oR;
			} else size = 8;
		/* falls through */
		case 16: o = __hexlify(this, this.l, size); break;
	}}
	this.l+=size; return o;
}

var __writeUInt32LE = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >>> 8) & 0xFF); b[idx+2] = ((val >>> 16) & 0xFF); b[idx+3] = ((val >>> 24) & 0xFF); };
var __writeInt32LE  = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >> 8) & 0xFF); b[idx+2] = ((val >> 16) & 0xFF); b[idx+3] = ((val >> 24) & 0xFF); };
var __writeUInt16LE = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >>> 8) & 0xFF); };

function WriteShift(t, val, f) {
	var size = 0, i = 0;
	if(f === 'dbcs') {
for(i = 0; i != val.length; ++i) __writeUInt16LE(this, val.charCodeAt(i), this.l + 2 * i);
		size = 2 * val.length;
	} else if(f === 'sbcs') {
		if(typeof $cptable !== 'undefined' && current_ansi == 874) {
			/* TODO: use tables directly, don't encode */
for(i = 0; i != val.length; ++i) {
				var cppayload = $cptable.utils.encode(current_ansi, val.charAt(i));
				this[this.l + i] = cppayload[0];
			}
		} else {
val = val.replace(/[^\x00-\x7F]/g, "_");
for(i = 0; i != val.length; ++i) this[this.l + i] = (val.charCodeAt(i) & 0xFF);
		}
		size = val.length;
	} else if(f === 'hex') {
		for(; i < t; ++i) {
this[this.l++] = (parseInt(val.slice(2*i, 2*i+2), 16)||0);
		} return this;
	} else if(f === 'utf16le') {
var end = Math.min(this.l + t, this.length);
			for(i = 0; i < Math.min(val.length, t); ++i) {
				var cc = val.charCodeAt(i);
				this[this.l++] = (cc & 0xff);
				this[this.l++] = (cc >> 8);
			}
			while(this.l < end) this[this.l++] = 0;
			return this;
	} else  switch(t) {
		case  1: size = 1; this[this.l] = val&0xFF; break;
		case  2: size = 2; this[this.l] = val&0xFF; val >>>= 8; this[this.l+1] = val&0xFF; break;
		case  3: size = 3; this[this.l] = val&0xFF; val >>>= 8; this[this.l+1] = val&0xFF; val >>>= 8; this[this.l+2] = val&0xFF; break;
		case  4: size = 4; __writeUInt32LE(this, val, this.l); break;
		case  8: size = 8; if(f === 'f') { write_double_le(this, val, this.l); break; }
		/* falls through */
		case 16: break;
		case -4: size = 4; __writeInt32LE(this, val, this.l); break;
	}
	this.l += size; return this;
}

function CheckField(hexstr, fld) {
	var m = __hexlify(this,this.l,hexstr.length>>1);
	if(m !== hexstr) throw new Error(fld + 'Expected ' + hexstr + ' saw ' + m);
	this.l += hexstr.length>>1;
}

function prep_blob(blob, pos) {
	blob.l = pos;
	blob.read_shift = ReadShift;
	blob.chk = CheckField;
	blob.write_shift = WriteShift;
}

function parsenoop(blob, length) { blob.l += length; }

function new_buf(sz) {
	var o = new_raw_buf(sz);
	prep_blob(o, 0);
	return o;
}

/* [MS-XLSB] 2.1.4 Record */
function recordhopper(data, cb, opts) {
	if(!data) return;
	var tmpbyte, cntbyte, length;
	prep_blob(data, data.l || 0);
	var L = data.length, RT = 0, tgt = 0;
	while(data.l < L) {
		RT = data.read_shift(1);
		if(RT & 0x80) RT = (RT & 0x7F) + ((data.read_shift(1) & 0x7F)<<7);
		var R = XLSBRecordEnum[RT] || XLSBRecordEnum[0xFFFF];
		tmpbyte = data.read_shift(1);
		length = tmpbyte & 0x7F;
		for(cntbyte = 1; cntbyte <4 && (tmpbyte & 0x80); ++cntbyte) length += ((tmpbyte = data.read_shift(1)) & 0x7F)<<(7*cntbyte);
		tgt = data.l + length;
		var d = R.f && R.f(data, length, opts);
		data.l = tgt;
		if(cb(d, R, RT)) return;
	}
}

/* control buffer usage for fixed-length buffers */
function buf_array() {
	var bufs = [], blksz = has_buf ? 256 : 2048;
	var newblk = function ba_newblk(sz) {
		var o = (new_buf(sz));
		prep_blob(o, 0);
		return o;
	};

	var curbuf = newblk(blksz);

	var endbuf = function ba_endbuf() {
		if(!curbuf) return;
		if(curbuf.length > curbuf.l) { curbuf = curbuf.slice(0, curbuf.l); curbuf.l = curbuf.length; }
		if(curbuf.length > 0) bufs.push(curbuf);
		curbuf = null;
	};

	var next = function ba_next(sz) {
		if(curbuf && (sz < (curbuf.length - curbuf.l))) return curbuf;
		endbuf();
		return (curbuf = newblk(Math.max(sz+1, blksz)));
	};

	var end = function ba_end() {
		endbuf();
		return bconcat(bufs);
	};

	var push = function ba_push(buf) { endbuf(); curbuf = buf; if(curbuf.l == null) curbuf.l = curbuf.length; next(blksz); };

	return ({ next:next, push:push, end:end, _bufs:bufs });
}

function write_record(ba, type, payload, length) {
	var t = +type, l;
	if(isNaN(t)) return; // TODO: throw something here?
	if(!length) length = XLSBRecordEnum[t].p || (payload||[]).length || 0;
	l = 1 + (t >= 0x80 ? 1 : 0) + 1/* + length*/;
	if(length >= 0x80) ++l; if(length >= 0x4000) ++l; if(length >= 0x200000) ++l;
	var o = ba.next(l);
	if(t <= 0x7F) o.write_shift(1, t);
	else {
		o.write_shift(1, (t & 0x7F) + 0x80);
		o.write_shift(1, (t >> 7));
	}
	for(var i = 0; i != 4; ++i) {
		if(length >= 0x80) { o.write_shift(1, (length & 0x7F)+0x80); length >>= 7; }
		else { o.write_shift(1, length); break; }
	}
	if(length > 0 && is_buf(payload)) ba.push(payload);
}
/* XLS ranges enforced */
function shift_cell_xls(cell, tgt, opts) {
	var out = dup(cell);
	if(tgt.s) {
		if(out.cRel) out.c += tgt.s.c;
		if(out.rRel) out.r += tgt.s.r;
	} else {
		if(out.cRel) out.c += tgt.c;
		if(out.rRel) out.r += tgt.r;
	}
	if(!opts || opts.biff < 12) {
		while(out.c >= 0x100) out.c -= 0x100;
		while(out.r >= 0x10000) out.r -= 0x10000;
	}
	return out;
}

function shift_range_xls(cell, range, opts) {
	var out = dup(cell);
	out.s = shift_cell_xls(out.s, range.s, opts);
	out.e = shift_cell_xls(out.e, range.s, opts);
	return out;
}

function encode_cell_xls(c, biff) {
	if(c.cRel && c.c < 0) { c = dup(c); while(c.c < 0) c.c += (biff > 8) ? 0x4000 : 0x100; }
	if(c.rRel && c.r < 0) { c = dup(c); while(c.r < 0) c.r += (biff > 8) ? 0x100000 : ((biff > 5) ? 0x10000 : 0x4000); }
	var s = encode_cell(c);
	if(!c.cRel && c.cRel != null) s = fix_col(s);
	if(!c.rRel && c.rRel != null) s = fix_row(s);
	return s;
}

function encode_range_xls(r, opts) {
	if(r.s.r == 0 && !r.s.rRel) {
		if(r.e.r == (opts.biff >= 12 ? 0xFFFFF : (opts.biff >= 8 ? 0x10000 : 0x4000)) && !r.e.rRel) {
			return (r.s.cRel ? "" : "$") + encode_col(r.s.c) + ":" + (r.e.cRel ? "" : "$") + encode_col(r.e.c);
		}
	}
	if(r.s.c == 0 && !r.s.cRel) {
		if(r.e.c == (opts.biff >= 12 ? 0x3FFF : 0xFF) && !r.e.cRel) {
			return (r.s.rRel ? "" : "$") + encode_row(r.s.r) + ":" + (r.e.rRel ? "" : "$") + encode_row(r.e.r);
		}
	}
	return encode_cell_xls(r.s, opts.biff) + ":" + encode_cell_xls(r.e, opts.biff);
}
function decode_row(rowstr) { return parseInt(unfix_row(rowstr),10) - 1; }
function encode_row(row) { return "" + (row + 1); }
function fix_row(cstr) { return cstr.replace(/([A-Z]|^)(\d+)$/,"$1$$$2"); }
function unfix_row(cstr) { return cstr.replace(/\$(\d+)$/,"$1"); }

function decode_col(colstr) { var c = unfix_col(colstr), d = 0, i = 0; for(; i !== c.length; ++i) d = 26*d + c.charCodeAt(i) - 64; return d - 1; }
function encode_col(col) { if(col < 0) throw new Error("invalid column " + col); var s=""; for(++col; col; col=Math.floor((col-1)/26)) s = String.fromCharCode(((col-1)%26) + 65) + s; return s; }
function fix_col(cstr) { return cstr.replace(/^([A-Z])/,"$$$1"); }
function unfix_col(cstr) { return cstr.replace(/^\$([A-Z])/,"$1"); }

function split_cell(cstr) { return cstr.replace(/(\$?[A-Z]*)(\$?\d*)/,"$1,$2").split(","); }
//function decode_cell(cstr) { var splt = split_cell(cstr); return { c:decode_col(splt[0]), r:decode_row(splt[1]) }; }
function decode_cell(cstr) {
	var R = 0, C = 0;
	for(var i = 0; i < cstr.length; ++i) {
		var cc = cstr.charCodeAt(i);
		if(cc >= 48 && cc <= 57) R = 10 * R + (cc - 48);
		else if(cc >= 65 && cc <= 90) C = 26 * C + (cc - 64);
	}
	return { c: C - 1, r:R - 1 };
}
//function encode_cell(cell) { return encode_col(cell.c) + encode_row(cell.r); }
function encode_cell(cell) {
	var col = cell.c + 1;
	var s="";
	for(; col; col=((col-1)/26)|0) s = String.fromCharCode(((col-1)%26) + 65) + s;
	return s + (cell.r + 1);
}
function decode_range(range) {
	var idx = range.indexOf(":");
	if(idx == -1) return { s: decode_cell(range), e: decode_cell(range) };
	return { s: decode_cell(range.slice(0, idx)), e: decode_cell(range.slice(idx + 1)) };
}
function encode_range(cs,ce) {
	if(typeof ce === 'undefined' || typeof ce === 'number') {
return encode_range(cs.s, cs.e);
	}
if(typeof cs !== 'string') cs = encode_cell((cs));
	if(typeof ce !== 'string') ce = encode_cell((ce));
return cs == ce ? cs : cs + ":" + ce;
}

function safe_decode_range(range) {
	var o = {s:{c:0,r:0},e:{c:0,r:0}};
	var idx = 0, i = 0, cc = 0;
	var len = range.length;
	for(idx = 0; i < len; ++i) {
		if((cc=range.charCodeAt(i)-64) < 1 || cc > 26) break;
		idx = 26*idx + cc;
	}
	o.s.c = --idx;

	for(idx = 0; i < len; ++i) {
		if((cc=range.charCodeAt(i)-48) < 0 || cc > 9) break;
		idx = 10*idx + cc;
	}
	o.s.r = --idx;

	if(i === len || cc != 10) { o.e.c=o.s.c; o.e.r=o.s.r; return o; }
	++i;

	for(idx = 0; i != len; ++i) {
		if((cc=range.charCodeAt(i)-64) < 1 || cc > 26) break;
		idx = 26*idx + cc;
	}
	o.e.c = --idx;

	for(idx = 0; i != len; ++i) {
		if((cc=range.charCodeAt(i)-48) < 0 || cc > 9) break;
		idx = 10*idx + cc;
	}
	o.e.r = --idx;
	return o;
}

function safe_format_cell(cell, v) {
	var q = (cell.t == 'd' && v instanceof Date);
	if(cell.z != null) try { return (cell.w = SSF.format(cell.z, q ? datenum(v) : v)); } catch(e) { }
	try { return (cell.w = SSF.format((cell.XF||{}).numFmtId||(q ? 14 : 0),  q ? datenum(v) : v)); } catch(e) { return ''+v; }
}

function format_cell(cell, v, o) {
	if(cell == null || cell.t == null || cell.t == 'z') return "";
	if(cell.w !== undefined) return cell.w;
	if(cell.t == 'd' && !cell.z && o && o.dateNF) cell.z = o.dateNF;
	if(cell.t == "e") return BErr[cell.v] || cell.v;
	if(v == undefined) return safe_format_cell(cell, cell.v);
	return safe_format_cell(cell, v);
}

function sheet_to_workbook(sheet, opts) {
	var n = opts && opts.sheet ? opts.sheet : "Sheet1";
	var sheets = {}; sheets[n] = sheet;
	return { SheetNames: [n], Sheets: sheets };
}

function sheet_add_aoa(_ws, data, opts) {
	var o = opts || {};
	var dense = _ws ? Array.isArray(_ws) : o.dense;
	if(DENSE != null && dense == null) dense = DENSE;
	var ws = _ws || (dense ? ([]) : ({}));
	var _R = 0, _C = 0;
	if(ws && o.origin != null) {
		if(typeof o.origin == 'number') _R = o.origin;
		else {
			var _origin = typeof o.origin == "string" ? decode_cell(o.origin) : o.origin;
			_R = _origin.r; _C = _origin.c;
		}
		if(!ws["!ref"]) ws["!ref"] = "A1:A1";
	}
	var range = ({s: {c:10000000, r:10000000}, e: {c:0, r:0}});
	if(ws['!ref']) {
		var _range = safe_decode_range(ws['!ref']);
		range.s.c = _range.s.c;
		range.s.r = _range.s.r;
		range.e.c = Math.max(range.e.c, _range.e.c);
		range.e.r = Math.max(range.e.r, _range.e.r);
		if(_R == -1) range.e.r = _R = _range.e.r + 1;
	}
	for(var R = 0; R != data.length; ++R) {
		if(!data[R]) continue;
		if(!Array.isArray(data[R])) throw new Error("aoa_to_sheet expects an array of arrays");
		for(var C = 0; C != data[R].length; ++C) {
			if(typeof data[R][C] === 'undefined') continue;
			var cell = ({v: data[R][C] });
			var __R = _R + R, __C = _C + C;
			if(range.s.r > __R) range.s.r = __R;
			if(range.s.c > __C) range.s.c = __C;
			if(range.e.r < __R) range.e.r = __R;
			if(range.e.c < __C) range.e.c = __C;
			if(data[R][C] && typeof data[R][C] === 'object' && !Array.isArray(data[R][C]) && !(data[R][C] instanceof Date)) cell = data[R][C];
			else {
				if(Array.isArray(cell.v)) { cell.f = data[R][C][1]; cell.v = cell.v[0]; }
				if(cell.v === null) {
					if(cell.f) cell.t = 'n';
					else if(o.nullError) { cell.t = 'e'; cell.v = 0; }
					else if(!o.sheetStubs) continue;
					else cell.t = 'z';
				}
				else if(typeof cell.v === 'number') cell.t = 'n';
				else if(typeof cell.v === 'boolean') cell.t = 'b';
				else if(cell.v instanceof Date) {
					cell.z = o.dateNF || SSF._table[14];
					if(o.cellDates) { cell.t = 'd'; cell.w = SSF.format(cell.z, datenum(cell.v)); }
					else { cell.t = 'n'; cell.v = datenum(cell.v); cell.w = SSF.format(cell.z, cell.v); }
				}
				else cell.t = 's';
			}
			if(dense) {
				if(!ws[__R]) ws[__R] = [];
				if(ws[__R][__C] && ws[__R][__C].z) cell.z = ws[__R][__C].z;
				ws[__R][__C] = cell;
			} else {
				var cell_ref = encode_cell(({c:__C,r:__R}));
				if(ws[cell_ref] && ws[cell_ref].z) cell.z = ws[cell_ref].z;
				ws[cell_ref] = cell;
			}
		}
	}
	if(range.s.c < 10000000) ws['!ref'] = encode_range(range);
	return ws;
}
function aoa_to_sheet(data, opts) { return sheet_add_aoa(null, data, opts); }

/* [MS-OLEPS] 2.2 PropertyType */
//var VT_EMPTY    = 0x0000;
//var VT_NULL     = 0x0001;
var VT_I2       = 0x0002;
var VT_I4       = 0x0003;
//var VT_R4       = 0x0004;
//var VT_R8       = 0x0005;
//var VT_CY       = 0x0006;
//var VT_DATE     = 0x0007;
//var VT_BSTR     = 0x0008;
//var VT_ERROR    = 0x000A;
var VT_BOOL     = 0x000B;
var VT_VARIANT  = 0x000C;
//var VT_DECIMAL  = 0x000E;
//var VT_I1       = 0x0010;
//var VT_UI1      = 0x0011;
//var VT_UI2      = 0x0012;
var VT_UI4      = 0x0013;
//var VT_I8       = 0x0014;
//var VT_UI8      = 0x0015;
//var VT_INT      = 0x0016;
//var VT_UINT     = 0x0017;
var VT_LPSTR    = 0x001E;
//var VT_LPWSTR   = 0x001F;
var VT_FILETIME = 0x0040;
var VT_BLOB     = 0x0041;
//var VT_STREAM   = 0x0042;
//var VT_STORAGE  = 0x0043;
//var VT_STREAMED_Object  = 0x0044;
//var VT_STORED_Object    = 0x0045;
//var VT_BLOB_Object      = 0x0046;
var VT_CF       = 0x0047;
//var VT_CLSID    = 0x0048;
//var VT_VERSIONED_STREAM = 0x0049;
var VT_VECTOR   = 0x1000;
//var VT_ARRAY    = 0x2000;

var VT_STRING   = 0x0050; // 2.3.3.1.11 VtString
var VT_USTR     = 0x0051; // 2.3.3.1.12 VtUnalignedString
var VT_CUSTOM   = [VT_STRING, VT_USTR];

/* [MS-OSHARED] 2.3.3.2.2.1 Document Summary Information PIDDSI */
var DocSummaryPIDDSI = {
0x01: { n: 'CodePage', t: VT_I2 },
0x02: { n: 'Category', t: VT_STRING },
0x03: { n: 'PresentationFormat', t: VT_STRING },
0x04: { n: 'ByteCount', t: VT_I4 },
0x05: { n: 'LineCount', t: VT_I4 },
0x06: { n: 'ParagraphCount', t: VT_I4 },
0x07: { n: 'SlideCount', t: VT_I4 },
0x08: { n: 'NoteCount', t: VT_I4 },
0x09: { n: 'HiddenCount', t: VT_I4 },
0x0a: { n: 'MultimediaClipCount', t: VT_I4 },
0x0b: { n: 'ScaleCrop', t: VT_BOOL },
0x0c: { n: 'HeadingPairs', t: VT_VECTOR | VT_VARIANT },
0x0d: { n: 'TitlesOfParts', t: VT_VECTOR | VT_LPSTR },
0x0e: { n: 'Manager', t: VT_STRING },
0x0f: { n: 'Company', t: VT_STRING },
0x10: { n: 'LinksUpToDate', t: VT_BOOL },
0x11: { n: 'CharacterCount', t: VT_I4 },
0x13: { n: 'SharedDoc', t: VT_BOOL },
0x16: { n: 'HyperlinksChanged', t: VT_BOOL },
0x17: { n: 'AppVersion', t: VT_I4, p: 'version' },
0x18: { n: 'DigSig', t: VT_BLOB },
0x1A: { n: 'ContentType', t: VT_STRING },
0x1B: { n: 'ContentStatus', t: VT_STRING },
0x1C: { n: 'Language', t: VT_STRING },
0x1D: { n: 'Version', t: VT_STRING },
0xFF: {},
	/* [MS-OLEPS] 2.18 */
0x80000000: { n: 'Locale', t: VT_UI4 },
0x80000003: { n: 'Behavior', t: VT_UI4 },
0x72627262: {}
};

/* [MS-OSHARED] 2.3.3.2.1.1 Summary Information Property Set PIDSI */
var SummaryPIDSI = {
0x01: { n: 'CodePage', t: VT_I2 },
0x02: { n: 'Title', t: VT_STRING },
0x03: { n: 'Subject', t: VT_STRING },
0x04: { n: 'Author', t: VT_STRING },
0x05: { n: 'Keywords', t: VT_STRING },
0x06: { n: 'Comments', t: VT_STRING },
0x07: { n: 'Template', t: VT_STRING },
0x08: { n: 'LastAuthor', t: VT_STRING },
0x09: { n: 'RevNumber', t: VT_STRING },
0x0A: { n: 'EditTime', t: VT_FILETIME },
0x0B: { n: 'LastPrinted', t: VT_FILETIME },
0x0C: { n: 'CreatedDate', t: VT_FILETIME },
0x0D: { n: 'ModifiedDate', t: VT_FILETIME },
0x0E: { n: 'PageCount', t: VT_I4 },
0x0F: { n: 'WordCount', t: VT_I4 },
0x10: { n: 'CharCount', t: VT_I4 },
0x11: { n: 'Thumbnail', t: VT_CF },
0x12: { n: 'Application', t: VT_STRING },
0x13: { n: 'DocSecurity', t: VT_I4 },
0xFF: {},
	/* [MS-OLEPS] 2.18 */
0x80000000: { n: 'Locale', t: VT_UI4 },
0x80000003: { n: 'Behavior', t: VT_UI4 },
0x72627262: {}
};

/* [MS-XLS] 2.4.63 Country/Region codes */
var CountryEnum = {
0x0001: "US", // United States
0x0002: "CA", // Canada
0x0003: "", // Latin America (except Brazil)
0x0007: "RU", // Russia
0x0014: "EG", // Egypt
0x001E: "GR", // Greece
0x001F: "NL", // Netherlands
0x0020: "BE", // Belgium
0x0021: "FR", // France
0x0022: "ES", // Spain
0x0024: "HU", // Hungary
0x0027: "IT", // Italy
0x0029: "CH", // Switzerland
0x002B: "AT", // Austria
0x002C: "GB", // United Kingdom
0x002D: "DK", // Denmark
0x002E: "SE", // Sweden
0x002F: "NO", // Norway
0x0030: "PL", // Poland
0x0031: "DE", // Germany
0x0034: "MX", // Mexico
0x0037: "BR", // Brazil
0x003d: "AU", // Australia
0x0040: "NZ", // New Zealand
0x0042: "TH", // Thailand
0x0051: "JP", // Japan
0x0052: "KR", // Korea
0x0054: "VN", // Viet Nam
0x0056: "CN", // China
0x005A: "TR", // Turkey
0x0069: "JS", // Ramastan
0x00D5: "DZ", // Algeria
0x00D8: "MA", // Morocco
0x00DA: "LY", // Libya
0x015F: "PT", // Portugal
0x0162: "IS", // Iceland
0x0166: "FI", // Finland
0x01A4: "CZ", // Czech Republic
0x0376: "TW", // Taiwan
0x03C1: "LB", // Lebanon
0x03C2: "JO", // Jordan
0x03C3: "SY", // Syria
0x03C4: "IQ", // Iraq
0x03C5: "KW", // Kuwait
0x03C6: "SA", // Saudi Arabia
0x03CB: "AE", // United Arab Emirates
0x03CC: "IL", // Israel
0x03CE: "QA", // Qatar
0x03D5: "IR", // Iran
0xFFFF: "US"  // United States
};

/* [MS-XLS] 2.5.127 */
var XLSFillPattern = [
	null,
	'solid',
	'mediumGray',
	'darkGray',
	'lightGray',
	'darkHorizontal',
	'darkVertical',
	'darkDown',
	'darkUp',
	'darkGrid',
	'darkTrellis',
	'lightHorizontal',
	'lightVertical',
	'lightDown',
	'lightUp',
	'lightGrid',
	'lightTrellis',
	'gray125',
	'gray0625'
];

function rgbify(arr) { return arr.map(function(x) { return [(x>>16)&255,(x>>8)&255,x&255]; }); }

/* [MS-XLS] 2.5.161 */
/* [MS-XLSB] 2.5.75 Icv */
var _XLSIcv = rgbify([
	/* Color Constants */
	0x000000,
	0xFFFFFF,
	0xFF0000,
	0x00FF00,
	0x0000FF,
	0xFFFF00,
	0xFF00FF,
	0x00FFFF,

	/* Overridable Defaults */
	0x000000,
	0xFFFFFF,
	0xFF0000,
	0x00FF00,
	0x0000FF,
	0xFFFF00,
	0xFF00FF,
	0x00FFFF,

	0x800000,
	0x008000,
	0x000080,
	0x808000,
	0x800080,
	0x008080,
	0xC0C0C0,
	0x808080,
	0x9999FF,
	0x993366,
	0xFFFFCC,
	0xCCFFFF,
	0x660066,
	0xFF8080,
	0x0066CC,
	0xCCCCFF,

	0x000080,
	0xFF00FF,
	0xFFFF00,
	0x00FFFF,
	0x800080,
	0x800000,
	0x008080,
	0x0000FF,
	0x00CCFF,
	0xCCFFFF,
	0xCCFFCC,
	0xFFFF99,
	0x99CCFF,
	0xFF99CC,
	0xCC99FF,
	0xFFCC99,

	0x3366FF,
	0x33CCCC,
	0x99CC00,
	0xFFCC00,
	0xFF9900,
	0xFF6600,
	0x666699,
	0x969696,
	0x003366,
	0x339966,
	0x003300,
	0x333300,
	0x993300,
	0x993366,
	0x333399,
	0x333333,

	/* Other entries to appease BIFF8/12 */
	0xFFFFFF, /* 0x40 icvForeground ?? */
	0x000000, /* 0x41 icvBackground ?? */
	0x000000, /* 0x42 icvFrame ?? */
	0x000000, /* 0x43 icv3D ?? */
	0x000000, /* 0x44 icv3DText ?? */
	0x000000, /* 0x45 icv3DHilite ?? */
	0x000000, /* 0x46 icv3DShadow ?? */
	0x000000, /* 0x47 icvHilite ?? */
	0x000000, /* 0x48 icvCtlText ?? */
	0x000000, /* 0x49 icvCtlScrl ?? */
	0x000000, /* 0x4A icvCtlInv ?? */
	0x000000, /* 0x4B icvCtlBody ?? */
	0x000000, /* 0x4C icvCtlFrame ?? */
	0x000000, /* 0x4D icvCtlFore ?? */
	0x000000, /* 0x4E icvCtlBack ?? */
	0x000000, /* 0x4F icvCtlNeutral */
	0x000000, /* 0x50 icvInfoBk ?? */
	0x000000 /* 0x51 icvInfoText ?? */
]);
var XLSIcv = dup(_XLSIcv);

/* [MS-XLSB] 2.5.97.2 */
var BErr = {
0x00: "#NULL!",
0x07: "#DIV/0!",
0x0F: "#VALUE!",
0x17: "#REF!",
0x1D: "#NAME?",
0x24: "#NUM!",
0x2A: "#N/A",
0x2B: "#GETTING_DATA",
0xFF: "#WTF?"
};
var RBErr = evert_num(BErr);
/* Parts enumerated in OPC spec, MS-XLSB and MS-XLSX */
/* 12.3 Part Summary <SpreadsheetML> */
/* 14.2 Part Summary <DrawingML> */
/* [MS-XLSX] 2.1 Part Enumerations ; [MS-XLSB] 2.1.7 Part Enumeration */
var ct2type/*{[string]:string}*/ = ({
	/* Workbook */
	"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml": "workbooks",
	"application/vnd.ms-excel.sheet.macroEnabled.main+xml": "workbooks",
	"application/vnd.ms-excel.sheet.binary.macroEnabled.main": "workbooks",
	"application/vnd.ms-excel.addin.macroEnabled.main+xml": "workbooks",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.template.main+xml": "workbooks",

	/* Worksheet */
	"application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml": "sheets",
	"application/vnd.ms-excel.worksheet": "sheets",
	"application/vnd.ms-excel.binIndexWs": "TODO", /* Binary Index */

	/* Chartsheet */
	"application/vnd.openxmlformats-officedocument.spreadsheetml.chartsheet+xml": "charts",
	"application/vnd.ms-excel.chartsheet": "charts",

	/* Macrosheet */
	"application/vnd.ms-excel.macrosheet+xml": "macros",
	"application/vnd.ms-excel.macrosheet": "macros",
	"application/vnd.ms-excel.intlmacrosheet": "TODO",
	"application/vnd.ms-excel.binIndexMs": "TODO", /* Binary Index */

	/* Dialogsheet */
	"application/vnd.openxmlformats-officedocument.spreadsheetml.dialogsheet+xml": "dialogs",
	"application/vnd.ms-excel.dialogsheet": "dialogs",

	/* Shared Strings */
	"application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml": "strs",
	"application/vnd.ms-excel.sharedStrings": "strs",

	/* Styles */
	"application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml": "styles",
	"application/vnd.ms-excel.styles": "styles",

	/* File Properties */
	"application/vnd.openxmlformats-package.core-properties+xml": "coreprops",
	"application/vnd.openxmlformats-officedocument.custom-properties+xml": "custprops",
	"application/vnd.openxmlformats-officedocument.extended-properties+xml": "extprops",

	/* Custom Data Properties */
	"application/vnd.openxmlformats-officedocument.customXmlProperties+xml": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.customProperty": "TODO",

	/* Comments */
	"application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml": "comments",
	"application/vnd.ms-excel.comments": "comments",
	"application/vnd.ms-excel.threadedcomments+xml": "threadedcomments",
	"application/vnd.ms-excel.person+xml": "people",

	/* Metadata (Stock/Geography and Dynamic Array) */
	"application/vnd.openxmlformats-officedocument.spreadsheetml.sheetMetadata+xml": "metadata",
	"application/vnd.ms-excel.sheetMetadata": "metadata",

	/* PivotTable */
	"application/vnd.ms-excel.pivotTable": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.pivotTable+xml": "TODO",

	/* Chart Objects */
	"application/vnd.openxmlformats-officedocument.drawingml.chart+xml": "TODO",

	/* Chart Colors */
	"application/vnd.ms-office.chartcolorstyle+xml": "TODO",

	/* Chart Style */
	"application/vnd.ms-office.chartstyle+xml": "TODO",

	/* Chart Advanced */
	"application/vnd.ms-office.chartex+xml": "TODO",

	/* Calculation Chain */
	"application/vnd.ms-excel.calcChain": "calcchains",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.calcChain+xml": "calcchains",

	/* Printer Settings */
	"application/vnd.openxmlformats-officedocument.spreadsheetml.printerSettings": "TODO",

	/* ActiveX */
	"application/vnd.ms-office.activeX": "TODO",
	"application/vnd.ms-office.activeX+xml": "TODO",

	/* Custom Toolbars */
	"application/vnd.ms-excel.attachedToolbars": "TODO",

	/* External Data Connections */
	"application/vnd.ms-excel.connections": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.connections+xml": "TODO",

	/* External Links */
	"application/vnd.ms-excel.externalLink": "links",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.externalLink+xml": "links",

	/* PivotCache */
	"application/vnd.ms-excel.pivotCacheDefinition": "TODO",
	"application/vnd.ms-excel.pivotCacheRecords": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.pivotCacheDefinition+xml": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.pivotCacheRecords+xml": "TODO",

	/* Query Table */
	"application/vnd.ms-excel.queryTable": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.queryTable+xml": "TODO",

	/* Shared Workbook */
	"application/vnd.ms-excel.userNames": "TODO",
	"application/vnd.ms-excel.revisionHeaders": "TODO",
	"application/vnd.ms-excel.revisionLog": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.revisionHeaders+xml": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.revisionLog+xml": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.userNames+xml": "TODO",

	/* Single Cell Table */
	"application/vnd.ms-excel.tableSingleCells": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.tableSingleCells+xml": "TODO",

	/* Slicer */
	"application/vnd.ms-excel.slicer": "TODO",
	"application/vnd.ms-excel.slicerCache": "TODO",
	"application/vnd.ms-excel.slicer+xml": "TODO",
	"application/vnd.ms-excel.slicerCache+xml": "TODO",

	/* Sort Map */
	"application/vnd.ms-excel.wsSortMap": "TODO",

	/* Table */
	"application/vnd.ms-excel.table": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.table+xml": "TODO",

	/* Themes */
	"application/vnd.openxmlformats-officedocument.theme+xml": "themes",

	/* Theme Override */
	"application/vnd.openxmlformats-officedocument.themeOverride+xml": "TODO",

	/* Timeline */
	"application/vnd.ms-excel.Timeline+xml": "TODO", /* verify */
	"application/vnd.ms-excel.TimelineCache+xml": "TODO", /* verify */

	/* VBA */
	"application/vnd.ms-office.vbaProject": "vba",
	"application/vnd.ms-office.vbaProjectSignature": "TODO",

	/* Volatile Dependencies */
	"application/vnd.ms-office.volatileDependencies": "TODO",
	"application/vnd.openxmlformats-officedocument.spreadsheetml.volatileDependencies+xml": "TODO",

	/* Control Properties */
	"application/vnd.ms-excel.controlproperties+xml": "TODO",

	/* Data Model */
	"application/vnd.openxmlformats-officedocument.model+data": "TODO",

	/* Survey */
	"application/vnd.ms-excel.Survey+xml": "TODO",

	/* Drawing */
	"application/vnd.openxmlformats-officedocument.drawing+xml": "drawings",
	"application/vnd.openxmlformats-officedocument.drawingml.chartshapes+xml": "TODO",
	"application/vnd.openxmlformats-officedocument.drawingml.diagramColors+xml": "TODO",
	"application/vnd.openxmlformats-officedocument.drawingml.diagramData+xml": "TODO",
	"application/vnd.openxmlformats-officedocument.drawingml.diagramLayout+xml": "TODO",
	"application/vnd.openxmlformats-officedocument.drawingml.diagramStyle+xml": "TODO",

	/* VML */
	"application/vnd.openxmlformats-officedocument.vmlDrawing": "TODO",

	"application/vnd.openxmlformats-package.relationships+xml": "rels",
	"application/vnd.openxmlformats-officedocument.oleObject": "TODO",

	/* Image */
	"image/png": "TODO",

	"sheet": "js"
});

var CT_LIST = {
		workbooks: {
			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml",
			xlsm: "application/vnd.ms-excel.sheet.macroEnabled.main+xml",
			xlsb: "application/vnd.ms-excel.sheet.binary.macroEnabled.main",
			xlam: "application/vnd.ms-excel.addin.macroEnabled.main+xml",
			xltx: "application/vnd.openxmlformats-officedocument.spreadsheetml.template.main+xml"
		},
		strs: { /* Shared Strings */
			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml",
			xlsb: "application/vnd.ms-excel.sharedStrings"
		},
		comments: { /* Comments */
			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml",
			xlsb: "application/vnd.ms-excel.comments"
		},
		sheets: { /* Worksheet */
			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml",
			xlsb: "application/vnd.ms-excel.worksheet"
		},
		charts: { /* Chartsheet */
			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.chartsheet+xml",
			xlsb: "application/vnd.ms-excel.chartsheet"
		},
		dialogs: { /* Dialogsheet */
			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.dialogsheet+xml",
			xlsb: "application/vnd.ms-excel.dialogsheet"
		},
		macros: { /* Macrosheet (Excel 4.0 Macros) */
			xlsx: "application/vnd.ms-excel.macrosheet+xml",
			xlsb: "application/vnd.ms-excel.macrosheet"
		},
		metadata: { /* Metadata (Stock/Geography and Dynamic Array) */
			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheetMetadata+xml",
			xlsb: "application/vnd.ms-excel.sheetMetadata"
		},
		styles: { /* Styles */
			xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml",
			xlsb: "application/vnd.ms-excel.styles"
		}
};

function new_ct() {
	return ({
		workbooks:[], sheets:[], charts:[], dialogs:[], macros:[],
		rels:[], strs:[], comments:[], threadedcomments:[], links:[],
		coreprops:[], extprops:[], custprops:[], themes:[], styles:[],
		calcchains:[], vba: [], drawings: [], metadata: [], people:[],
		TODO:[], xmlns: "" });
}

function parse_ct(data) {
	var ct = new_ct();
	if(!data || !data.match) return ct;
	var ctext = {};
	(data.match(tagregex)||[]).forEach(function(x) {
		var y = parsexmltag(x);
		switch(y[0].replace(nsregex,"<")) {
			case '<?xml': break;
			case '<Types': ct.xmlns = y['xmlns' + (y[0].match(/<(\w+):/)||["",""])[1] ]; break;
			case '<Default': ctext[y.Extension] = y.ContentType; break;
			case '<Override':
				if(ct[ct2type[y.ContentType]] !== undefined) ct[ct2type[y.ContentType]].push(y.PartName);
				break;
		}
	});
	if(ct.xmlns !== XMLNS.CT) throw new Error("Unknown Namespace: " + ct.xmlns);
	ct.calcchain = ct.calcchains.length > 0 ? ct.calcchains[0] : "";
	ct.sst = ct.strs.length > 0 ? ct.strs[0] : "";
	ct.style = ct.styles.length > 0 ? ct.styles[0] : "";
	ct.defaults = ctext;
	delete ct.calcchains;
	return ct;
}

var CTYPE_XML_ROOT = writextag('Types', null, {
	'xmlns': XMLNS.CT,
	'xmlns:xsd': XMLNS.xsd,
	'xmlns:xsi': XMLNS.xsi
});

function write_ct(ct, opts) {
	var type2ct/*{[string]:Array<string>}*/ = evert_arr(ct2type);

	var o = [], v;
	o[o.length] = (XML_HEADER);
	o[o.length] = (CTYPE_XML_ROOT);
	o = o.concat([
		['xml', 'application/xml'],
		['bin', 'application/vnd.ms-excel.sheet.binary.macroEnabled.main'],
		['vml', 'application/vnd.openxmlformats-officedocument.vmlDrawing'],
		['data', 'application/vnd.openxmlformats-officedocument.model+data'],
		/* from test files */
		['bmp', 'image/bmp'],
		['png', 'image/png'],
		['gif', 'image/gif'],
		['emf', 'image/x-emf'],
		['wmf', 'image/x-wmf'],
		['jpg', 'image/jpeg'], ['jpeg', 'image/jpeg'],
		['tif', 'image/tiff'], ['tiff', 'image/tiff'],
		['pdf', 'application/pdf'],
		['rels', 'application/vnd.openxmlformats-package.relationships+xml']
	].map(function(x) {
		return writextag('Default', null, {'Extension':x[0], 'ContentType': x[1]});
	}));

	/* only write first instance */
	var f1 = function(w) {
		if(ct[w] && ct[w].length > 0) {
			v = ct[w][0];
			o[o.length] = (writextag('Override', null, {
				'PartName': (v[0] == '/' ? "":"/") + v,
				'ContentType': CT_LIST[w][opts.bookType] || CT_LIST[w]['xlsx']
			}));
		}
	};

	/* book type-specific */
	var f2 = function(w) {
		(ct[w]||[]).forEach(function(v) {
			o[o.length] = (writextag('Override', null, {
				'PartName': (v[0] == '/' ? "":"/") + v,
				'ContentType': CT_LIST[w][opts.bookType] || CT_LIST[w]['xlsx']
			}));
		});
	};

	/* standard type */
	var f3 = function(t) {
		(ct[t]||[]).forEach(function(v) {
			o[o.length] = (writextag('Override', null, {
				'PartName': (v[0] == '/' ? "":"/") + v,
				'ContentType': type2ct[t][0]
			}));
		});
	};

	f1('workbooks');
	f2('sheets');
	f2('charts');
	f3('themes');
	['strs', 'styles'].forEach(f1);
	['coreprops', 'extprops', 'custprops'].forEach(f3);
	f3('vba');
	f3('comments');
	f3('threadedcomments');
	f3('drawings');
	f2('metadata');
	f3('people');
	if(o.length>2){ o[o.length] = ('</Types>'); o[1]=o[1].replace("/>",">"); }
	return o.join("");
}
/* 9.3 Relationships */
var RELS = ({
	WB: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument",
	SHEET: "http://sheetjs.openxmlformats.org/officeDocument/2006/relationships/officeDocument",
	HLINK: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink",
	VML: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing",
	XPATH: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/externalLinkPath",
	XMISS: "http://schemas.microsoft.com/office/2006/relationships/xlExternalLinkPath/xlPathMissing",
	XLINK: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/externalLink",
	CXML: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/customXml",
	CXMLP: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/customXmlProps",
	CMNT: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/comments",
	CORE_PROPS: "http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties",
	EXT_PROPS: 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties',
	CUST_PROPS: 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/custom-properties',
	SST: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/sharedStrings",
	STY: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles",
	THEME: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme",
	CHART: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/chart",
	CHARTEX: "http://schemas.microsoft.com/office/2014/relationships/chartEx",
	CS: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/chartsheet",
	WS: [
		"http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet",
		"http://purl.oclc.org/ooxml/officeDocument/relationships/worksheet"
	],
	DS: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/dialogsheet",
	MS: "http://schemas.microsoft.com/office/2006/relationships/xlMacrosheet",
	IMG: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/image",
	DRAW: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/drawing",
	XLMETA: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/sheetMetadata",
	TCMNT: "http://schemas.microsoft.com/office/2017/10/relationships/threadedComment",
	PEOPLE: "http://schemas.microsoft.com/office/2017/10/relationships/person",
	VBA: "http://schemas.microsoft.com/office/2006/relationships/vbaProject"
});


/* 9.3.3 Representing Relationships */
function get_rels_path(file) {
	var n = file.lastIndexOf("/");
	return file.slice(0,n+1) + '_rels/' + file.slice(n+1) + ".rels";
}

function parse_rels(data, currentFilePath) {
	var rels = {"!id":{}};
	if (!data) return rels;
	if (currentFilePath.charAt(0) !== '/') {
		currentFilePath = '/'+currentFilePath;
	}
	var hash = {};

	(data.match(tagregex)||[]).forEach(function(x) {
		var y = parsexmltag(x);
		/* 9.3.2.2 OPC_Relationships */
		if (y[0] === '<Relationship') {
			var rel = {}; rel.Type = y.Type; rel.Target = y.Target; rel.Id = y.Id; if(y.TargetMode) rel.TargetMode = y.TargetMode;
			var canonictarget = y.TargetMode === 'External' ? y.Target : resolve_path(y.Target, currentFilePath);
			rels[canonictarget] = rel;
			hash[y.Id] = rel;
		}
	});
	rels["!id"] = hash;
	return rels;
}


var RELS_ROOT = writextag('Relationships', null, {
	//'xmlns:ns0': XMLNS.RELS,
	'xmlns': XMLNS.RELS
});

/* TODO */
function write_rels(rels) {
	var o = [XML_HEADER, RELS_ROOT];
	keys(rels['!id']).forEach(function(rid) {
		o[o.length] = (writextag('Relationship', null, rels['!id'][rid]));
	});
	if(o.length>2){ o[o.length] = ('</Relationships>'); o[1]=o[1].replace("/>",">"); }
	return o.join("");
}

var RELS_EXTERN = [RELS.HLINK, RELS.XPATH, RELS.XMISS];
function add_rels(rels, rId, f, type, relobj, targetmode) {
	if(!relobj) relobj = {};
	if(!rels['!id']) rels['!id'] = {};
	if(!rels['!idx']) rels['!idx'] = 1;
	if(rId < 0) for(rId = rels['!idx']; rels['!id']['rId' + rId]; ++rId){/* empty */}
	rels['!idx'] = rId + 1;
	relobj.Id = 'rId' + rId;
	relobj.Type = type;
	relobj.Target = f;
	if(targetmode) relobj.TargetMode = targetmode;
	else if(RELS_EXTERN.indexOf(relobj.Type) > -1) relobj.TargetMode = "External";
	if(rels['!id'][relobj.Id]) throw new Error("Cannot rewrite rId " + rId);
	rels['!id'][relobj.Id] = relobj;
	rels[('/' + relobj.Target).replace("//","/")] = relobj;
	return rId;
}
/* Open Document Format for Office Applications (OpenDocument) Version 1.2 */
/* Part 3 Section 4 Manifest File */
var CT_ODS = "application/vnd.oasis.opendocument.spreadsheet";
function parse_manifest(d, opts) {
	var str = xlml_normalize(d);
	var Rn;
	var FEtag;
	while((Rn = xlmlregex.exec(str))) switch(Rn[3]) {
		case 'manifest': break; // 4.2 <manifest:manifest>
		case 'file-entry': // 4.3 <manifest:file-entry>
			FEtag = parsexmltag(Rn[0], false);
			if(FEtag.path == '/' && FEtag.type !== CT_ODS) throw new Error("This OpenDocument is not a spreadsheet");
			break;
		case 'encryption-data': // 4.4 <manifest:encryption-data>
		case 'algorithm': // 4.5 <manifest:algorithm>
		case 'start-key-generation': // 4.6 <manifest:start-key-generation>
		case 'key-derivation': // 4.7 <manifest:key-derivation>
			throw new Error("Unsupported ODS Encryption");
		default: if(opts && opts.WTF) throw Rn;
	}
}

function write_manifest(manifest) {
	var o = [XML_HEADER];
	o.push('<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.2">\n');
	o.push('  <manifest:file-entry manifest:full-path="/" manifest:version="1.2" manifest:media-type="application/vnd.oasis.opendocument.spreadsheet"/>\n');
	for(var i = 0; i < manifest.length; ++i) o.push('  <manifest:file-entry manifest:full-path="' + manifest[i][0] + '" manifest:media-type="' + manifest[i][1] + '"/>\n');
	o.push('</manifest:manifest>');
	return o.join("");
}

/* Part 3 Section 6 Metadata Manifest File */
function write_rdf_type(file, res, tag) {
	return [
		'  <rdf:Description rdf:about="' + file + '">\n',
		'    <rdf:type rdf:resource="http://docs.oasis-open.org/ns/office/1.2/meta/' + (tag || "odf") + '#' + res + '"/>\n',
		'  </rdf:Description>\n'
	].join("");
}
function write_rdf_has(base, file) {
	return [
		'  <rdf:Description rdf:about="' + base + '">\n',
		'    <ns0:hasPart xmlns:ns0="http://docs.oasis-open.org/ns/office/1.2/meta/pkg#" rdf:resource="' + file + '"/>\n',
		'  </rdf:Description>\n'
	].join("");
}
function write_rdf(rdf) {
	var o = [XML_HEADER];
	o.push('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n');
	for(var i = 0; i != rdf.length; ++i) {
		o.push(write_rdf_type(rdf[i][0], rdf[i][1]));
		o.push(write_rdf_has("",rdf[i][0]));
	}
	o.push(write_rdf_type("","Document", "pkg"));
	o.push('</rdf:RDF>');
	return o.join("");
}
/* TODO: pull properties */
function write_meta_ods() {
	return '<office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xlink="http://www.w3.org/1999/xlink" office:version="1.2"><office:meta><meta:generator>Sheet' + 'JS ' + XLSX.version + '</meta:generator></office:meta></office:document-meta>';
}

/* ECMA-376 Part II 11.1 Core Properties Part */
/* [MS-OSHARED] 2.3.3.2.[1-2].1 (PIDSI/PIDDSI) */
var CORE_PROPS = [
	["cp:category", "Category"],
	["cp:contentStatus", "ContentStatus"],
	["cp:keywords", "Keywords"],
	["cp:lastModifiedBy", "LastAuthor"],
	["cp:lastPrinted", "LastPrinted"],
	["cp:revision", "RevNumber"],
	["cp:version", "Version"],
	["dc:creator", "Author"],
	["dc:description", "Comments"],
	["dc:identifier", "Identifier"],
	["dc:language", "Language"],
	["dc:subject", "Subject"],
	["dc:title", "Title"],
	["dcterms:created", "CreatedDate", 'date'],
	["dcterms:modified", "ModifiedDate", 'date']
];

var CORE_PROPS_REGEX = (function() {
	var r = new Array(CORE_PROPS.length);
	for(var i = 0; i < CORE_PROPS.length; ++i) {
		var f = CORE_PROPS[i];
		var g = "(?:"+ f[0].slice(0,f[0].indexOf(":")) +":)"+ f[0].slice(f[0].indexOf(":")+1);
		r[i] = new RegExp("<" + g + "[^>]*>([\\s\\S]*?)<\/" + g + ">");
	}
	return r;
})();

function parse_core_props(data) {
	var p = {};
	data = utf8read(data);

	for(var i = 0; i < CORE_PROPS.length; ++i) {
		var f = CORE_PROPS[i], cur = data.match(CORE_PROPS_REGEX[i]);
		if(cur != null && cur.length > 0) p[f[1]] = unescapexml(cur[1]);
		if(f[2] === 'date' && p[f[1]]) p[f[1]] = parseDate(p[f[1]]);
	}

	return p;
}

function cp_doit(f, g, h, o, p) {
	if(p[f] != null || g == null || g === "") return;
	p[f] = g;
	g = escapexml(g);
	o[o.length] = (h ? writextag(f,g,h) : writetag(f,g));
}

function write_core_props(cp, _opts) {
	var opts = _opts || {};
	var o = [XML_HEADER, writextag('cp:coreProperties', null, {
		//'xmlns': XMLNS.CORE_PROPS,
		'xmlns:cp': XMLNS.CORE_PROPS,
		'xmlns:dc': XMLNS.dc,
		'xmlns:dcterms': XMLNS.dcterms,
		'xmlns:dcmitype': XMLNS.dcmitype,
		'xmlns:xsi': XMLNS.xsi
	})], p = {};
	if(!cp && !opts.Props) return o.join("");

	if(cp) {
		if(cp.CreatedDate != null) cp_doit("dcterms:created", typeof cp.CreatedDate === "string" ? cp.CreatedDate : write_w3cdtf(cp.CreatedDate, opts.WTF), {"xsi:type":"dcterms:W3CDTF"}, o, p);
		if(cp.ModifiedDate != null) cp_doit("dcterms:modified", typeof cp.ModifiedDate === "string" ? cp.ModifiedDate : write_w3cdtf(cp.ModifiedDate, opts.WTF), {"xsi:type":"dcterms:W3CDTF"}, o, p);
	}

	for(var i = 0; i != CORE_PROPS.length; ++i) {
		var f = CORE_PROPS[i];
		var v = opts.Props && opts.Props[f[1]] != null ? opts.Props[f[1]] : cp ? cp[f[1]] : null;
		if(v === true) v = "1";
		else if(v === false) v = "0";
		else if(typeof v == "number") v = String(v);
		if(v != null) cp_doit(f[0], v, null, o, p);
	}
	if(o.length>2){ o[o.length] = ('</cp:coreProperties>'); o[1]=o[1].replace("/>",">"); }
	return o.join("");
}
/* 15.2.12.3 Extended File Properties Part */
/* [MS-OSHARED] 2.3.3.2.[1-2].1 (PIDSI/PIDDSI) */
var EXT_PROPS = [
	["Application", "Application", "string"],
	["AppVersion", "AppVersion", "string"],
	["Company", "Company", "string"],
	["DocSecurity", "DocSecurity", "string"],
	["Manager", "Manager", "string"],
	["HyperlinksChanged", "HyperlinksChanged", "bool"],
	["SharedDoc", "SharedDoc", "bool"],
	["LinksUpToDate", "LinksUpToDate", "bool"],
	["ScaleCrop", "ScaleCrop", "bool"],
	["HeadingPairs", "HeadingPairs", "raw"],
	["TitlesOfParts", "TitlesOfParts", "raw"]
];

var PseudoPropsPairs = [
	"Worksheets",  "SheetNames",
	"NamedRanges", "DefinedNames",
	"Chartsheets", "ChartNames"
];
function load_props_pairs(HP, TOP, props, opts) {
	var v = [];
	if(typeof HP == "string") v = parseVector(HP, opts);
	else for(var j = 0; j < HP.length; ++j) v = v.concat(HP[j].map(function(hp) { return {v:hp}; }));
	var parts = (typeof TOP == "string") ? parseVector(TOP, opts).map(function (x) { return x.v; }) : TOP;
	var idx = 0, len = 0;
	if(parts.length > 0) for(var i = 0; i !== v.length; i += 2) {
		len = +(v[i+1].v);
		switch(v[i].v) {
			case "Worksheets":
			case "工作表":
			case "Листы":
			case "أوراق العمل":
			case "ワークシート":
			case "גליונות עבודה":
			case "Arbeitsblätter":
			case "Çalışma Sayfaları":
			case "Feuilles de calcul":
			case "Fogli di lavoro":
			case "Folhas de cálculo":
			case "Planilhas":
			case "Regneark":
			case "Hojas de cálculo":
			case "Werkbladen":
				props.Worksheets = len;
				props.SheetNames = parts.slice(idx, idx + len);
				break;

			case "Named Ranges":
			case "Rangos con nombre":
			case "名前付き一覧":
			case "Benannte Bereiche":
			case "Navngivne områder":
				props.NamedRanges = len;
				props.DefinedNames = parts.slice(idx, idx + len);
				break;

			case "Charts":
			case "Diagramme":
				props.Chartsheets = len;
				props.ChartNames = parts.slice(idx, idx + len);
				break;
		}
		idx += len;
	}
}

function parse_ext_props(data, p, opts) {
	var q = {}; if(!p) p = {};
	data = utf8read(data);

	EXT_PROPS.forEach(function(f) {
		var xml = (data.match(matchtag(f[0]))||[])[1];
		switch(f[2]) {
			case "string": if(xml) p[f[1]] = unescapexml(xml); break;
			case "bool": p[f[1]] = xml === "true"; break;
			case "raw":
				var cur = data.match(new RegExp("<" + f[0] + "[^>]*>([\\s\\S]*?)<\/" + f[0] + ">"));
				if(cur && cur.length > 0) q[f[1]] = cur[1];
				break;
		}
	});

	if(q.HeadingPairs && q.TitlesOfParts) load_props_pairs(q.HeadingPairs, q.TitlesOfParts, p, opts);

	return p;
}

function write_ext_props(cp) {
	var o = [], W = writextag;
	if(!cp) cp = {};
	cp.Application = "SheetJS";
	o[o.length] = (XML_HEADER);
	o[o.length] = (writextag('Properties', null, {
		'xmlns': XMLNS.EXT_PROPS,
		'xmlns:vt': XMLNS.vt
	}));

	EXT_PROPS.forEach(function(f) {
		if(cp[f[1]] === undefined) return;
		var v;
		switch(f[2]) {
			case 'string': v = escapexml(String(cp[f[1]])); break;
			case 'bool': v = cp[f[1]] ? 'true' : 'false'; break;
		}
		if(v !== undefined) o[o.length] = (W(f[0], v));
	});

	/* TODO: HeadingPairs, TitlesOfParts */
	o[o.length] = (W('HeadingPairs', W('vt:vector', W('vt:variant', '<vt:lpstr>Worksheets</vt:lpstr>')+W('vt:variant', W('vt:i4', String(cp.Worksheets))), {size:2, baseType:"variant"})));
	o[o.length] = (W('TitlesOfParts', W('vt:vector', cp.SheetNames.map(function(s) { return "<vt:lpstr>" + escapexml(s) + "</vt:lpstr>"; }).join(""), {size: cp.Worksheets, baseType:"lpstr"})));
	if(o.length>2){ o[o.length] = ('</Properties>'); o[1]=o[1].replace("/>",">"); }
	return o.join("");
}
/* 15.2.12.2 Custom File Properties Part */
var custregex = /<[^>]+>[^<]*/g;
function parse_cust_props(data, opts) {
	var p = {}, name = "";
	var m = data.match(custregex);
	if(m) for(var i = 0; i != m.length; ++i) {
		var x = m[i], y = parsexmltag(x);
		switch(y[0]) {
			case '<?xml': break;
			case '<Properties': break;
			case '<property': name = unescapexml(y.name); break;
			case '</property>': name = null; break;
			default: if (x.indexOf('<vt:') === 0) {
				var toks = x.split('>');
				var type = toks[0].slice(4), text = toks[1];
				/* 22.4.2.32 (CT_Variant). Omit the binary types from 22.4 (Variant Types) */
				switch(type) {
					case 'lpstr': case 'bstr': case 'lpwstr':
						p[name] = unescapexml(text);
						break;
					case 'bool':
						p[name] = parsexmlbool(text);
						break;
					case 'i1': case 'i2': case 'i4': case 'i8': case 'int': case 'uint':
						p[name] = parseInt(text, 10);
						break;
					case 'r4': case 'r8': case 'decimal':
						p[name] = parseFloat(text);
						break;
					case 'filetime': case 'date':
						p[name] = parseDate(text);
						break;
					case 'cy': case 'error':
						p[name] = unescapexml(text);
						break;
					default:
						if(type.slice(-1) == '/') break;
						if(opts.WTF && typeof console !== 'undefined') console.warn('Unexpected', x, type, toks);
				}
			} else if(x.slice(0,2) === "</") {/* empty */
			} else if(opts.WTF) throw new Error(x);
		}
	}
	return p;
}

function write_cust_props(cp) {
	var o = [XML_HEADER, writextag('Properties', null, {
		'xmlns': XMLNS.CUST_PROPS,
		'xmlns:vt': XMLNS.vt
	})];
	if(!cp) return o.join("");
	var pid = 1;
	keys(cp).forEach(function custprop(k) { ++pid;
		o[o.length] = (writextag('property', write_vt(cp[k], true), {
			'fmtid': '{D5CDD505-2E9C-101B-9397-08002B2CF9AE}',
			'pid': pid,
			'name': escapexml(k)
		}));
	});
	if(o.length>2){ o[o.length] = '</Properties>'; o[1]=o[1].replace("/>",">"); }
	return o.join("");
}
/* from js-harb (C) 2014-present  SheetJS */
var DBF_SUPPORTED_VERSIONS = [0x02, 0x03, 0x30, 0x31, 0x83, 0x8B, 0x8C, 0xF5];
var DBF = (function() {
var dbf_codepage_map = {
	/* Code Pages Supported by Visual FoxPro */
0x01:   437,           0x02:   850,
0x03:  1252,           0x04: 10000,
0x64:   852,           0x65:   866,
0x66:   865,           0x67:   861,
0x68:   895,           0x69:   620,
0x6A:   737,           0x6B:   857,
0x78:   950,           0x79:   949,
0x7A:   936,           0x7B:   932,
0x7C:   874,           0x7D:  1255,
0x7E:  1256,           0x96: 10007,
0x97: 10029,           0x98: 10006,
0xC8:  1250,           0xC9:  1251,
0xCA:  1254,           0xCB:  1253,

	/* shapefile DBF extension */
0x00: 20127,           0x08:   865,
0x09:   437,           0x0A:   850,
0x0B:   437,           0x0D:   437,
0x0E:   850,           0x0F:   437,
0x10:   850,           0x11:   437,
0x12:   850,           0x13:   932,
0x14:   850,           0x15:   437,
0x16:   850,           0x17:   865,
0x18:   437,           0x19:   437,
0x1A:   850,           0x1B:   437,
0x1C:   863,           0x1D:   850,
0x1F:   852,           0x22:   852,
0x23:   852,           0x24:   860,
0x25:   850,           0x26:   866,
0x37:   850,           0x40:   852,
0x4D:   936,           0x4E:   949,
0x4F:   950,           0x50:   874,
0x57:  1252,           0x58:  1252,
0x59:  1252,           0x6C:   863,
0x86:   737,           0x87:   852,
0x88:   857,           0xCC:  1257,

0xFF: 16969
};
var dbf_reverse_map = evert({
0x01:   437,           0x02:   850,
0x03:  1252,           0x04: 10000,
0x64:   852,           0x65:   866,
0x66:   865,           0x67:   861,
0x68:   895,           0x69:   620,
0x6A:   737,           0x6B:   857,
0x78:   950,           0x79:   949,
0x7A:   936,           0x7B:   932,
0x7C:   874,           0x7D:  1255,
0x7E:  1256,           0x96: 10007,
0x97: 10029,           0x98: 10006,
0xC8:  1250,           0xC9:  1251,
0xCA:  1254,           0xCB:  1253,
0x00: 20127
});
/* TODO: find an actual specification */
function dbf_to_aoa(buf, opts) {
	var out = [];
	var d = (new_raw_buf(1));
	switch(opts.type) {
		case 'base64': d = s2a(Base64.decode(buf)); break;
		case 'binary': d = s2a(buf); break;
		case 'buffer':
		case 'array': d = buf; break;
	}
	prep_blob(d, 0);

	/* header */
	var ft = d.read_shift(1);
	var memo = !!(ft & 0x88);
	var vfp = false, l7 = false;
	switch(ft) {
		case 0x02: break; // dBASE II
		case 0x03: break; // dBASE III
		case 0x30: vfp = true; memo = true; break; // VFP
		case 0x31: vfp = true; memo = true; break; // VFP with autoincrement
		// 0x43 dBASE IV SQL table files
		// 0x63 dBASE IV SQL system files
		case 0x83: break; // dBASE III with memo
		case 0x8B: break; // dBASE IV with memo
		case 0x8C: l7 = true; break; // dBASE Level 7 with memo
		// case 0xCB dBASE IV SQL table files with memo
		case 0xF5: break; // FoxPro 2.x with memo
		// case 0xFB FoxBASE
		default: throw new Error("DBF Unsupported Version: " + ft.toString(16));
	}

	var nrow = 0, fpos = 0x0209;
	if(ft == 0x02) nrow = d.read_shift(2);
	d.l += 3; // dBASE II stores DDMMYY date, others use YYMMDD
	if(ft != 0x02) nrow = d.read_shift(4);
	if(nrow > 1048576) nrow = 1e6;

	if(ft != 0x02) fpos = d.read_shift(2); // header length
	var rlen = d.read_shift(2); // record length

	var /*flags = 0,*/ current_cp = opts.codepage || 1252;
	if(ft != 0x02) { // 20 reserved bytes
		d.l+=16;
		/*flags = */d.read_shift(1);
		//if(memo && ((flags & 0x02) === 0)) throw new Error("DBF Flags " + flags.toString(16) + " ft " + ft.toString(16));

		/* codepage present in FoxPro and dBASE Level 7 */
		if(d[d.l] !== 0) current_cp = dbf_codepage_map[d[d.l]];
		d.l+=1;

		d.l+=2;
	}
	if(l7) d.l += 36; // Level 7: 32 byte "Language driver name", 4 byte reserved

var fields = [], field = ({});
	var hend = Math.min(d.length, (ft == 0x02 ? 0x209 : (fpos - 10 - (vfp ? 264 : 0))));
	var ww = l7 ? 32 : 11;
	while(d.l < hend && d[d.l] != 0x0d) {
		field = ({});
		field.name = $cptable.utils.decode(current_cp, d.slice(d.l, d.l+ww)).replace(/[\u0000\r\n].*$/g,"");
		d.l += ww;
		field.type = String.fromCharCode(d.read_shift(1));
		if(ft != 0x02 && !l7) field.offset = d.read_shift(4);
		field.len = d.read_shift(1);
		if(ft == 0x02) field.offset = d.read_shift(2);
		field.dec = d.read_shift(1);
		if(field.name.length) fields.push(field);
		if(ft != 0x02) d.l += l7 ? 13 : 14;
		switch(field.type) {
			case 'B': // Double (VFP) / Binary (dBASE L7)
				if((!vfp || field.len != 8) && opts.WTF) console.log('Skipping ' + field.name + ':' + field.type);
				break;
			case 'G': // General (FoxPro and dBASE L7)
			case 'P': // Picture (FoxPro and dBASE L7)
				if(opts.WTF) console.log('Skipping ' + field.name + ':' + field.type);
				break;
			case '+': // Autoincrement (dBASE L7 only)
			case '0': // _NullFlags (VFP only)
			case '@': // Timestamp (dBASE L7 only)
			case 'C': // Character (dBASE II)
			case 'D': // Date (dBASE III)
			case 'F': // Float (dBASE IV)
			case 'I': // Long (VFP and dBASE L7)
			case 'L': // Logical (dBASE II)
			case 'M': // Memo (dBASE III)
			case 'N': // Number (dBASE II)
			case 'O': // Double (dBASE L7 only)
			case 'T': // Datetime (VFP only)
			case 'Y': // Currency (VFP only)
				break;
			default: throw new Error('Unknown Field Type: ' + field.type);
		}
	}

	if(d[d.l] !== 0x0D) d.l = fpos-1;
	if(d.read_shift(1) !== 0x0D) throw new Error("DBF Terminator not found " + d.l + " " + d[d.l]);
	d.l = fpos;

	/* data */
	var R = 0, C = 0;
	out[0] = [];
	for(C = 0; C != fields.length; ++C) out[0][C] = fields[C].name;
	while(nrow-- > 0) {
		if(d[d.l] === 0x2A) {
			// TODO: record marked as deleted -- create a hidden row?
			d.l+=rlen;
			continue;
		}
		++d.l;
		out[++R] = []; C = 0;
		for(C = 0; C != fields.length; ++C) {
			var dd = d.slice(d.l, d.l+fields[C].len); d.l+=fields[C].len;
			prep_blob(dd, 0);
			var s = $cptable.utils.decode(current_cp, dd);
			switch(fields[C].type) {
				case 'C':
					// NOTE: it is conventional to write '  /  /  ' for empty dates
					if(s.trim().length) out[R][C] = s.replace(/\s+$/,"");
					break;
				case 'D':
					if(s.length === 8) out[R][C] = new Date(+s.slice(0,4), +s.slice(4,6)-1, +s.slice(6,8));
					else out[R][C] = s;
					break;
				case 'F': out[R][C] = parseFloat(s.trim()); break;
				case '+': case 'I': out[R][C] = l7 ? dd.read_shift(-4, 'i') ^ 0x80000000 : dd.read_shift(4, 'i'); break;
				case 'L': switch(s.trim().toUpperCase()) {
					case 'Y': case 'T': out[R][C] = true; break;
					case 'N': case 'F': out[R][C] = false; break;
					case '': case '?': break;
					default: throw new Error("DBF Unrecognized L:|" + s + "|");
					} break;
				case 'M': /* TODO: handle memo files */
					if(!memo) throw new Error("DBF Unexpected MEMO for type " + ft.toString(16));
					out[R][C] = "##MEMO##" + (l7 ? parseInt(s.trim(), 10): dd.read_shift(4));
					break;
				case 'N':
					s = s.replace(/\u0000/g,"").trim();
					// NOTE: dBASE II interprets "  .  " as 0
					if(s && s != ".") out[R][C] = +s || 0; break;
				case '@':
					// NOTE: dBASE specs appear to be incorrect
					out[R][C] = new Date(dd.read_shift(-8, 'f') - 0x388317533400);
					break;
				case 'T': out[R][C] = new Date((dd.read_shift(4) - 0x253D8C) * 0x5265C00 + dd.read_shift(4)); break;
				case 'Y': out[R][C] = dd.read_shift(4,'i')/1e4 + (dd.read_shift(4, 'i')/1e4)*Math.pow(2,32); break;
				case 'O': out[R][C] = -dd.read_shift(-8, 'f'); break;
				case 'B': if(vfp && fields[C].len == 8) { out[R][C] = dd.read_shift(8,'f'); break; }
					/* falls through */
				case 'G': case 'P': dd.l += fields[C].len; break;
				case '0':
					if(fields[C].name === '_NullFlags') break;
					/* falls through */
				default: throw new Error("DBF Unsupported data type " + fields[C].type);
			}
		}
	}
	if(ft != 0x02) if(d.l < d.length && d[d.l++] != 0x1A) throw new Error("DBF EOF Marker missing " + (d.l-1) + " of " + d.length + " " + d[d.l-1].toString(16));
	if(opts && opts.sheetRows) out = out.slice(0, opts.sheetRows);
	opts.DBF = fields;
	return out;
}

function dbf_to_sheet(buf, opts) {
	var o = opts || {};
	if(!o.dateNF) o.dateNF = "yyyymmdd";
	var ws = aoa_to_sheet(dbf_to_aoa(buf, o), o);
	ws["!cols"] = o.DBF.map(function(field) { return {
		wch: field.len,
		DBF: field
	};});
	delete o.DBF;
	return ws;
}

function dbf_to_workbook(buf, opts) {
	try { return sheet_to_workbook(dbf_to_sheet(buf, opts), opts); }
	catch(e) { if(opts && opts.WTF) throw e; }
	return ({SheetNames:[],Sheets:{}});
}

var _RLEN = { 'B': 8, 'C': 250, 'L': 1, 'D': 8, '?': 0, '': 0 };
function sheet_to_dbf(ws, opts) {
	var o = opts || {};
	if(+o.codepage >= 0) set_cp(+o.codepage);
	if(o.type == "string") throw new Error("Cannot write DBF to JS string");
	var ba = buf_array();
	var aoa = sheet_to_json(ws, {header:1, raw:true, cellDates:true});
	var headers = aoa[0], data = aoa.slice(1), cols = ws["!cols"] || [];
	var i = 0, j = 0, hcnt = 0, rlen = 1;
	for(i = 0; i < headers.length; ++i) {
		if(((cols[i]||{}).DBF||{}).name) { headers[i] = cols[i].DBF.name; ++hcnt; continue; }
		if(headers[i] == null) continue;
		++hcnt;
		if(typeof headers[i] === 'number') headers[i] = headers[i].toString(10);
		if(typeof headers[i] !== 'string') throw new Error("DBF Invalid column name " + headers[i] + " |" + (typeof headers[i]) + "|");
		if(headers.indexOf(headers[i]) !== i) for(j=0; j<1024;++j)
			if(headers.indexOf(headers[i] + "_" + j) == -1) { headers[i] += "_" + j; break; }
	}
	var range = safe_decode_range(ws['!ref']);
	var coltypes = [];
	var colwidths = [];
	var coldecimals = [];
	for(i = 0; i <= range.e.c - range.s.c; ++i) {
		var guess = '', _guess = '', maxlen = 0;
		var col = [];
		for(j=0; j < data.length; ++j) {
			if(data[j][i] != null) col.push(data[j][i]);
		}
		if(col.length == 0 || headers[i] == null) { coltypes[i] = '?'; continue; }
		for(j = 0; j < col.length; ++j) {
			switch(typeof col[j]) {
				/* TODO: check if L2 compat is desired */
				case 'number': _guess = 'B'; break;
				case 'string': _guess = 'C'; break;
				case 'boolean': _guess = 'L'; break;
				case 'object': _guess = col[j] instanceof Date ? 'D' : 'C'; break;
				default: _guess = 'C';
			}
			maxlen = Math.max(maxlen, String(col[j]).length);
			guess = guess && guess != _guess ? 'C' : _guess;
			//if(guess == 'C') break;
		}
		if(maxlen > 250) maxlen = 250;
		_guess = ((cols[i]||{}).DBF||{}).type;
		/* TODO: more fine grained control over DBF type resolution */
		if(_guess == 'C') {
			if(cols[i].DBF.len > maxlen) maxlen = cols[i].DBF.len;
		}
		if(guess == 'B' && _guess == 'N') {
			guess = 'N';
			coldecimals[i] = cols[i].DBF.dec;
			maxlen = cols[i].DBF.len;
		}
		colwidths[i] = guess == 'C' || _guess == 'N' ? maxlen : (_RLEN[guess] || 0);
		rlen += colwidths[i];
		coltypes[i] = guess;
	}

	var h = ba.next(32);
	h.write_shift(4, 0x13021130);
	h.write_shift(4, data.length);
	h.write_shift(2, 296 + 32 * hcnt);
	h.write_shift(2, rlen);
	for(i=0; i < 4; ++i) h.write_shift(4, 0);
	h.write_shift(4, 0x00000000 | ((+dbf_reverse_map[current_ansi] || 0x03)<<8));

	for(i = 0, j = 0; i < headers.length; ++i) {
		if(headers[i] == null) continue;
		var hf = ba.next(32);
		var _f = (headers[i].slice(-10) + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00").slice(0, 11);
		hf.write_shift(1, _f, "sbcs");
		hf.write_shift(1, coltypes[i] == '?' ? 'C' : coltypes[i], "sbcs");
		hf.write_shift(4, j);
		hf.write_shift(1, colwidths[i] || _RLEN[coltypes[i]] || 0);
		hf.write_shift(1, coldecimals[i] || 0);
		hf.write_shift(1, 0x02);
		hf.write_shift(4, 0);
		hf.write_shift(1, 0);
		hf.write_shift(4, 0);
		hf.write_shift(4, 0);
		j += (colwidths[i] || _RLEN[coltypes[i]] || 0);
	}

	var hb = ba.next(264);
	hb.write_shift(4, 0x0000000D);
	for(i=0; i < 65;++i) hb.write_shift(4, 0x00000000);
	for(i=0; i < data.length; ++i) {
		var rout = ba.next(rlen);
		rout.write_shift(1, 0);
		for(j=0; j<headers.length; ++j) {
			if(headers[j] == null) continue;
			switch(coltypes[j]) {
				case 'L': rout.write_shift(1, data[i][j] == null ? 0x3F : data[i][j] ? 0x54 : 0x46); break;
				case 'B': rout.write_shift(8, data[i][j]||0, 'f'); break;
				case 'N':
					var _n = "0";
					if(typeof data[i][j] == "number") _n = data[i][j].toFixed(coldecimals[j]||0);
					for(hcnt=0; hcnt < colwidths[j]-_n.length; ++hcnt) rout.write_shift(1, 0x20);
					rout.write_shift(1, _n, "sbcs");
					break;
				case 'D':
					if(!data[i][j]) rout.write_shift(8, "00000000", "sbcs");
					else {
						rout.write_shift(4, ("0000"+data[i][j].getFullYear()).slice(-4), "sbcs");
						rout.write_shift(2, ("00"+(data[i][j].getMonth()+1)).slice(-2), "sbcs");
						rout.write_shift(2, ("00"+data[i][j].getDate()).slice(-2), "sbcs");
					} break;
				case 'C':
					var _s = String(data[i][j] != null ? data[i][j] : "").slice(0, colwidths[j]);
					rout.write_shift(1, _s, "sbcs");
					for(hcnt=0; hcnt < colwidths[j]-_s.length; ++hcnt) rout.write_shift(1, 0x20); break;
			}
		}
		// data
	}
	ba.next(1).write_shift(1, 0x1A);
	return ba.end();
}
	return {
		to_workbook: dbf_to_workbook,
		to_sheet: dbf_to_sheet,
		from_sheet: sheet_to_dbf
	};
})();

var SYLK = (function() {
	/* TODO: stress test sequences */
	var sylk_escapes = ({
		AA:'À', BA:'Á', CA:'Â', DA:195, HA:'Ä', JA:197,
		AE:'È', BE:'É', CE:'Ê',         HE:'Ë',
		AI:'Ì', BI:'Í', CI:'Î',         HI:'Ï',
		AO:'Ò', BO:'Ó', CO:'Ô', DO:213, HO:'Ö',
		AU:'Ù', BU:'Ú', CU:'Û',         HU:'Ü',
		Aa:'à', Ba:'á', Ca:'â', Da:227, Ha:'ä', Ja:229,
		Ae:'è', Be:'é', Ce:'ê',         He:'ë',
		Ai:'ì', Bi:'í', Ci:'î',         Hi:'ï',
		Ao:'ò', Bo:'ó', Co:'ô', Do:245, Ho:'ö',
		Au:'ù', Bu:'ú', Cu:'û',         Hu:'ü',
		KC:'Ç', Kc:'ç', q:'æ',  z:'œ',  a:'Æ',  j:'Œ',
		DN:209, Dn:241, Hy:255,
		S:169,  c:170,  R:174,  "B ":180,
0:176,    1:177,  2:178,
3:179,    5:181,  6:182,
7:183,    Q:185,  k:186,  b:208,  i:216,  l:222,  s:240,  y:248,
		"!":161, '"':162, "#":163, "(":164, "%":165, "'":167, "H ":168,
		"+":171, ";":187, "<":188, "=":189, ">":190, "?":191, "{":223
	});
	var sylk_char_regex = new RegExp("\u001BN(" + keys(sylk_escapes).join("|").replace(/\|\|\|/, "|\\||").replace(/([?()+])/g,"\\$1") + "|\\|)", "gm");
	var sylk_char_fn = function(_, $1){ var o = sylk_escapes[$1]; return typeof o == "number" ? _getansi(o) : o; };
	var decode_sylk_char = function($$, $1, $2) { var newcc = (($1.charCodeAt(0) - 0x20)<<4) | ($2.charCodeAt(0) - 0x30); return newcc == 59 ? $$ : _getansi(newcc); };
	sylk_escapes["|"] = 254;
	/* TODO: find an actual specification */
	function sylk_to_aoa(d, opts) {
		switch(opts.type) {
			case 'base64': return sylk_to_aoa_str(Base64.decode(d), opts);
			case 'binary': return sylk_to_aoa_str(d, opts);
			case 'buffer': return sylk_to_aoa_str(has_buf && Buffer.isBuffer(d) ? d.toString('binary') : a2s(d), opts);
			case 'array': return sylk_to_aoa_str(cc2str(d), opts);
		}
		throw new Error("Unrecognized type " + opts.type);
	}
	function sylk_to_aoa_str(str, opts) {
		var records = str.split(/[\n\r]+/), R = -1, C = -1, ri = 0, rj = 0, arr = [];
		var formats = [];
		var next_cell_format = null;
		var sht = {}, rowinfo = [], colinfo = [], cw = [];
		var Mval = 0, j;
		if(+opts.codepage >= 0) set_cp(+opts.codepage);
		for (; ri !== records.length; ++ri) {
			Mval = 0;
			var rstr=records[ri].trim().replace(/\x1B([\x20-\x2F])([\x30-\x3F])/g, decode_sylk_char).replace(sylk_char_regex, sylk_char_fn);
			var record=rstr.replace(/;;/g, "\u0000").split(";").map(function(x) { return x.replace(/\u0000/g, ";"); });
			var RT=record[0], val;
			if(rstr.length > 0) switch(RT) {
			case 'ID': break; /* header */
			case 'E': break; /* EOF */
			case 'B': break; /* dimensions */
			case 'O': break; /* options? */
			case 'W': break; /* window? */
			case 'P':
				if(record[1].charAt(0) == 'P')
					formats.push(rstr.slice(3).replace(/;;/g, ";"));
				break;
			case 'C':
			var C_seen_K = false, C_seen_X = false, C_seen_S = false, C_seen_E = false, _R = -1, _C = -1;
			for(rj=1; rj<record.length; ++rj) switch(record[rj].charAt(0)) {
				case 'A': break; // TODO: comment
				case 'X': C = parseInt(record[rj].slice(1))-1; C_seen_X = true; break;
				case 'Y':
					R = parseInt(record[rj].slice(1))-1; if(!C_seen_X) C = 0;
					for(j = arr.length; j <= R; ++j) arr[j] = [];
					break;
				case 'K':
					val = record[rj].slice(1);
					if(val.charAt(0) === '"') val = val.slice(1,val.length - 1);
					else if(val === 'TRUE') val = true;
					else if(val === 'FALSE') val = false;
					else if(!isNaN(fuzzynum(val))) {
						val = fuzzynum(val);
						if(next_cell_format !== null && SSF.is_date(next_cell_format)) val = numdate(val);
					} else if(!isNaN(fuzzydate(val).getDate())) {
						val = parseDate(val);
					}
					if(typeof $cptable !== 'undefined' && typeof val == "string" && ((opts||{}).type != "string") && (opts||{}).codepage) val = $cptable.utils.decode(opts.codepage, val);
					C_seen_K = true;
					break;
				case 'E':
					C_seen_E = true;
					var formula = rc_to_a1(record[rj].slice(1), {r:R,c:C});
					arr[R][C] = [arr[R][C], formula];
					break;
				case 'S':
					C_seen_S = true;
					arr[R][C] = [arr[R][C], "S5S"];
					break;
				case 'G': break; // unknown
				case 'R': _R = parseInt(record[rj].slice(1))-1; break;
				case 'C': _C = parseInt(record[rj].slice(1))-1; break;
				default: if(opts && opts.WTF) throw new Error("SYLK bad record " + rstr);
			}
			if(C_seen_K) {
				if(arr[R][C] && arr[R][C].length == 2) arr[R][C][0] = val;
				else arr[R][C] = val;
				next_cell_format = null;
			}
			if(C_seen_S) {
				if(C_seen_E) throw new Error("SYLK shared formula cannot have own formula");
				var shrbase = _R > -1 && arr[_R][_C];
				if(!shrbase || !shrbase[1]) throw new Error("SYLK shared formula cannot find base");
				arr[R][C][1] = shift_formula_str(shrbase[1], {r: R - _R, c: C - _C});
			}
			break;
			case 'F':
			var F_seen = 0;
			for(rj=1; rj<record.length; ++rj) switch(record[rj].charAt(0)) {
				case 'X': C = parseInt(record[rj].slice(1))-1; ++F_seen; break;
				case 'Y':
					R = parseInt(record[rj].slice(1))-1; /*C = 0;*/
					for(j = arr.length; j <= R; ++j) arr[j] = [];
					break;
				case 'M': Mval = parseInt(record[rj].slice(1)) / 20; break;
				case 'F': break; /* ??? */
				case 'G': break; /* hide grid */
				case 'P':
					next_cell_format = formats[parseInt(record[rj].slice(1))];
					break;
				case 'S': break; /* cell style */
				case 'D': break; /* column */
				case 'N': break; /* font */
				case 'W':
					cw = record[rj].slice(1).split(" ");
					for(j = parseInt(cw[0], 10); j <= parseInt(cw[1], 10); ++j) {
						Mval = parseInt(cw[2], 10);
						colinfo[j-1] = Mval === 0 ? {hidden:true}: {wch:Mval}; process_col(colinfo[j-1]);
					} break;
				case 'C': /* default column format */
					C = parseInt(record[rj].slice(1))-1;
					if(!colinfo[C]) colinfo[C] = {};
					break;
				case 'R': /* row properties */
					R = parseInt(record[rj].slice(1))-1;
					if(!rowinfo[R]) rowinfo[R] = {};
					if(Mval > 0) { rowinfo[R].hpt = Mval; rowinfo[R].hpx = pt2px(Mval); }
					else if(Mval === 0) rowinfo[R].hidden = true;
					break;
				default: if(opts && opts.WTF) throw new Error("SYLK bad record " + rstr);
			}
			if(F_seen < 1) next_cell_format = null; break;
			default: if(opts && opts.WTF) throw new Error("SYLK bad record " + rstr);
			}
		}
		if(rowinfo.length > 0) sht['!rows'] = rowinfo;
		if(colinfo.length > 0) sht['!cols'] = colinfo;
		if(opts && opts.sheetRows) arr = arr.slice(0, opts.sheetRows);
		return [arr, sht];
	}

	function sylk_to_sheet(d, opts) {
		var aoasht = sylk_to_aoa(d, opts);
		var aoa = aoasht[0], ws = aoasht[1];
		var o = aoa_to_sheet(aoa, opts);
		keys(ws).forEach(function(k) { o[k] = ws[k]; });
		return o;
	}

	function sylk_to_workbook(d, opts) { return sheet_to_workbook(sylk_to_sheet(d, opts), opts); }

	function write_ws_cell_sylk(cell, ws, R, C) {
		var o = "C;Y" + (R+1) + ";X" + (C+1) + ";K";
		switch(cell.t) {
			case 'n':
				o += (cell.v||0);
				if(cell.f && !cell.F) o += ";E" + a1_to_rc(cell.f, {r:R, c:C}); break;
			case 'b': o += cell.v ? "TRUE" : "FALSE"; break;
			case 'e': o += cell.w || cell.v; break;
			case 'd': o += '"' + (cell.w || cell.v) + '"'; break;
			case 's': o += '"' + cell.v.replace(/"/g,"").replace(/;/g, ";;") + '"'; break;
		}
		return o;
	}

	function write_ws_cols_sylk(out, cols) {
		cols.forEach(function(col, i) {
			var rec = "F;W" + (i+1) + " " + (i+1) + " ";
			if(col.hidden) rec += "0";
			else {
				if(typeof col.width == 'number' && !col.wpx) col.wpx = width2px(col.width);
				if(typeof col.wpx == 'number' && !col.wch) col.wch = px2char(col.wpx);
				if(typeof col.wch == 'number') rec += Math.round(col.wch);
			}
			if(rec.charAt(rec.length - 1) != " ") out.push(rec);
		});
	}

	function write_ws_rows_sylk(out, rows) {
		rows.forEach(function(row, i) {
			var rec = "F;";
			if(row.hidden) rec += "M0;";
			else if(row.hpt) rec += "M" + 20 * row.hpt + ";";
			else if(row.hpx) rec += "M" + 20 * px2pt(row.hpx) + ";";
			if(rec.length > 2) out.push(rec + "R" + (i+1));
		});
	}

	function sheet_to_sylk(ws, opts) {
		var preamble = ["ID;PWXL;N;E"], o = [];
		var r = safe_decode_range(ws['!ref']), cell;
		var dense = Array.isArray(ws);
		var RS = "\r\n";

		preamble.push("P;PGeneral");
		preamble.push("F;P0;DG0G8;M255");
		if(ws['!cols']) write_ws_cols_sylk(preamble, ws['!cols']);
		if(ws['!rows']) write_ws_rows_sylk(preamble, ws['!rows']);

		preamble.push("B;Y" + (r.e.r - r.s.r + 1) + ";X" + (r.e.c - r.s.c + 1) + ";D" + [r.s.c,r.s.r,r.e.c,r.e.r].join(" "));
		for(var R = r.s.r; R <= r.e.r; ++R) {
			for(var C = r.s.c; C <= r.e.c; ++C) {
				var coord = encode_cell({r:R,c:C});
				cell = dense ? (ws[R]||[])[C]: ws[coord];
				if(!cell || (cell.v == null && (!cell.f || cell.F))) continue;
				o.push(write_ws_cell_sylk(cell, ws, R, C, opts));
			}
		}
		return preamble.join(RS) + RS + o.join(RS) + RS + "E" + RS;
	}

	return {
		to_workbook: sylk_to_workbook,
		to_sheet: sylk_to_sheet,
		from_sheet: sheet_to_sylk
	};
})();

var DIF = (function() {
	function dif_to_aoa(d, opts) {
		switch(opts.type) {
			case 'base64': return dif_to_aoa_str(Base64.decode(d), opts);
			case 'binary': return dif_to_aoa_str(d, opts);
			case 'buffer': return dif_to_aoa_str(has_buf && Buffer.isBuffer(d) ? d.toString('binary') : a2s(d), opts);
			case 'array': return dif_to_aoa_str(cc2str(d), opts);
		}
		throw new Error("Unrecognized type " + opts.type);
	}
	function dif_to_aoa_str(str, opts) {
		var records = str.split('\n'), R = -1, C = -1, ri = 0, arr = [];
		for (; ri !== records.length; ++ri) {
			if (records[ri].trim() === 'BOT') { arr[++R] = []; C = 0; continue; }
			if (R < 0) continue;
			var metadata = records[ri].trim().split(",");
			var type = metadata[0], value = metadata[1];
			++ri;
			var data = records[ri] || "";
			while(((data.match(/["]/g)||[]).length & 1) && ri < records.length - 1) data += "\n" + records[++ri];
			data = data.trim();
			switch (+type) {
				case -1:
					if (data === 'BOT') { arr[++R] = []; C = 0; continue; }
					else if (data !== 'EOD') throw new Error("Unrecognized DIF special command " + data);
					break;
				case 0:
					if(data === 'TRUE') arr[R][C] = true;
					else if(data === 'FALSE') arr[R][C] = false;
					else if(!isNaN(fuzzynum(value))) arr[R][C] = fuzzynum(value);
					else if(!isNaN(fuzzydate(value).getDate())) arr[R][C] = parseDate(value);
					else arr[R][C] = value;
					++C; break;
				case 1:
					data = data.slice(1,data.length-1);
					data = data.replace(/""/g, '"');
					if(DIF_XL && data && data.match(/^=".*"$/)) data = data.slice(2, -1);
					arr[R][C++] = data !== '' ? data : null;
					break;
			}
			if (data === 'EOD') break;
		}
		if(opts && opts.sheetRows) arr = arr.slice(0, opts.sheetRows);
		return arr;
	}

	function dif_to_sheet(str, opts) { return aoa_to_sheet(dif_to_aoa(str, opts), opts); }
	function dif_to_workbook(str, opts) { return sheet_to_workbook(dif_to_sheet(str, opts), opts); }

	var sheet_to_dif = (function() {
		var push_field = function pf(o, topic, v, n, s) {
			o.push(topic);
			o.push(v + "," + n);
			o.push('"' + s.replace(/"/g,'""') + '"');
		};
		var push_value = function po(o, type, v, s) {
			o.push(type + "," + v);
			o.push(type == 1 ? '"' + s.replace(/"/g,'""') + '"' : s);
		};
		return function sheet_to_dif(ws) {
			var o = [];
			var r = safe_decode_range(ws['!ref']), cell;
			var dense = Array.isArray(ws);
			push_field(o, "TABLE", 0, 1, "sheetjs");
			push_field(o, "VECTORS", 0, r.e.r - r.s.r + 1,"");
			push_field(o, "TUPLES", 0, r.e.c - r.s.c + 1,"");
			push_field(o, "DATA", 0, 0,"");
			for(var R = r.s.r; R <= r.e.r; ++R) {
				push_value(o, -1, 0, "BOT");
				for(var C = r.s.c; C <= r.e.c; ++C) {
					var coord = encode_cell({r:R,c:C});
					cell = dense ? (ws[R]||[])[C] : ws[coord];
					if(!cell) { push_value(o, 1, 0, ""); continue;}
					switch(cell.t) {
						case 'n':
							var val = DIF_XL ? cell.w : cell.v;
							if(!val && cell.v != null) val = cell.v;
							if(val == null) {
								if(DIF_XL && cell.f && !cell.F) push_value(o, 1, 0, "=" + cell.f);
								else push_value(o, 1, 0, "");
							}
							else push_value(o, 0, val, "V");
							break;
						case 'b':
							push_value(o, 0, cell.v ? 1 : 0, cell.v ? "TRUE" : "FALSE");
							break;
						case 's':
							push_value(o, 1, 0, (!DIF_XL || isNaN(cell.v)) ? cell.v : '="' + cell.v + '"');
							break;
						case 'd':
							if(!cell.w) cell.w = SSF.format(cell.z || SSF._table[14], datenum(parseDate(cell.v)));
							if(DIF_XL) push_value(o, 0, cell.w, "V");
							else push_value(o, 1, 0, cell.w);
							break;
						default: push_value(o, 1, 0, "");
					}
				}
			}
			push_value(o, -1, 0, "EOD");
			var RS = "\r\n";
			var oo = o.join(RS);
			//while((oo.length & 0x7F) != 0) oo += "\0";
			return oo;
		};
	})();
	return {
		to_workbook: dif_to_workbook,
		to_sheet: dif_to_sheet,
		from_sheet: sheet_to_dif
	};
})();

var ETH = (function() {
	function decode(s) { return s.replace(/\\b/g,"\\").replace(/\\c/g,":").replace(/\\n/g,"\n"); }
	function encode(s) { return s.replace(/\\/g, "\\b").replace(/:/g, "\\c").replace(/\n/g,"\\n"); }

	function eth_to_aoa(str, opts) {
		var records = str.split('\n'), R = -1, C = -1, ri = 0, arr = [];
		for (; ri !== records.length; ++ri) {
			var record = records[ri].trim().split(":");
			if(record[0] !== 'cell') continue;
			var addr = decode_cell(record[1]);
			if(arr.length <= addr.r) for(R = arr.length; R <= addr.r; ++R) if(!arr[R]) arr[R] = [];
			R = addr.r; C = addr.c;
			switch(record[2]) {
				case 't': arr[R][C] = decode(record[3]); break;
				case 'v': arr[R][C] = +record[3]; break;
				case 'vtf': var _f = record[record.length - 1];
					/* falls through */
				case 'vtc':
					switch(record[3]) {
						case 'nl': arr[R][C] = +record[4] ? true : false; break;
						default: arr[R][C] = +record[4]; break;
					}
					if(record[2] == 'vtf') arr[R][C] = [arr[R][C], _f];
			}
		}
		if(opts && opts.sheetRows) arr = arr.slice(0, opts.sheetRows);
		return arr;
	}

	function eth_to_sheet(d, opts) { return aoa_to_sheet(eth_to_aoa(d, opts), opts); }
	function eth_to_workbook(d, opts) { return sheet_to_workbook(eth_to_sheet(d, opts), opts); }

	var header = [
		"socialcalc:version:1.5",
		"MIME-Version: 1.0",
		"Content-Type: multipart/mixed; boundary=SocialCalcSpreadsheetControlSave"
	].join("\n");

	var sep = [
		"--SocialCalcSpreadsheetControlSave",
		"Content-type: text/plain; charset=UTF-8"
	].join("\n") + "\n";

	/* TODO: the other parts */
	var meta = [
		"# SocialCalc Spreadsheet Control Save",
		"part:sheet"
	].join("\n");

	var end = "--SocialCalcSpreadsheetControlSave--";

	function sheet_to_eth_data(ws) {
		if(!ws || !ws['!ref']) return "";
		var o = [], oo = [], cell, coord = "";
		var r = decode_range(ws['!ref']);
		var dense = Array.isArray(ws);
		for(var R = r.s.r; R <= r.e.r; ++R) {
			for(var C = r.s.c; C <= r.e.c; ++C) {
				coord = encode_cell({r:R,c:C});
				cell = dense ? (ws[R]||[])[C] : ws[coord];
				if(!cell || cell.v == null || cell.t === 'z') continue;
				oo = ["cell", coord, 't'];
				switch(cell.t) {
					case 's': case 'str': oo.push(encode(cell.v)); break;
					case 'n':
						if(!cell.f) { oo[2]='v'; oo[3]=cell.v; }
						else { oo[2]='vtf'; oo[3]='n'; oo[4]=cell.v; oo[5]=encode(cell.f); }
						break;
					case 'b':
						oo[2] = 'vt'+(cell.f?'f':'c'); oo[3]='nl'; oo[4]=cell.v?"1":"0";
						oo[5] = encode(cell.f||(cell.v?'TRUE':'FALSE'));
						break;
					case 'd':
						var t = datenum(parseDate(cell.v));
						oo[2] = 'vtc'; oo[3] = 'nd'; oo[4] = ""+t;
						oo[5] = cell.w || SSF.format(cell.z || SSF._table[14], t);
						break;
					case 'e': continue;
				}
				o.push(oo.join(":"));
			}
		}
		o.push("sheet:c:" + (r.e.c-r.s.c+1) + ":r:" + (r.e.r-r.s.r+1) + ":tvf:1");
		o.push("valueformat:1:text-wiki");
		//o.push("copiedfrom:" + ws['!ref']); // clipboard only
		return o.join("\n");
	}

	function sheet_to_eth(ws) {
		return [header, sep, meta, sep, sheet_to_eth_data(ws), end].join("\n");
		// return ["version:1.5", sheet_to_eth_data(ws)].join("\n"); // clipboard form
	}

	return {
		to_workbook: eth_to_workbook,
		to_sheet: eth_to_sheet,
		from_sheet: sheet_to_eth
	};
})();

var PRN = (function() {
	function set_text_arr(data, arr, R, C, o) {
		if(o.raw) arr[R][C] = data;
		else if(data === ""){/* empty */}
		else if(data === 'TRUE') arr[R][C] = true;
		else if(data === 'FALSE') arr[R][C] = false;
		else if(!isNaN(fuzzynum(data))) arr[R][C] = fuzzynum(data);
		else if(!isNaN(fuzzydate(data).getDate())) arr[R][C] = parseDate(data);
		else arr[R][C] = data;
	}

	function prn_to_aoa_str(f, opts) {
		var o = opts || {};
		var arr = ([]);
		if(!f || f.length === 0) return arr;
		var lines = f.split(/[\r\n]/);
		var L = lines.length - 1;
		while(L >= 0 && lines[L].length === 0) --L;
		var start = 10, idx = 0;
		var R = 0;
		for(; R <= L; ++R) {
			idx = lines[R].indexOf(" ");
			if(idx == -1) idx = lines[R].length; else idx++;
			start = Math.max(start, idx);
		}
		for(R = 0; R <= L; ++R) {
			arr[R] = [];
			/* TODO: confirm that widths are always 10 */
			var C = 0;
			set_text_arr(lines[R].slice(0, start).trim(), arr, R, C, o);
			for(C = 1; C <= (lines[R].length - start)/10 + 1; ++C)
				set_text_arr(lines[R].slice(start+(C-1)*10,start+C*10).trim(),arr,R,C,o);
		}
		if(o.sheetRows) arr = arr.slice(0, o.sheetRows);
		return arr;
	}

	// List of accepted CSV separators
	var guess_seps = {
0x2C: ',',
0x09: "\t",
0x3B: ';',
0x7C: '|'
	};

	// CSV separator weights to be used in case of equal numbers
	var guess_sep_weights = {
0x2C: 3,
0x09: 2,
0x3B: 1,
0x7C: 0
	};

	function guess_sep(str) {
		var cnt = {}, instr = false, end = 0, cc = 0;
		for(;end < str.length;++end) {
			if((cc=str.charCodeAt(end)) == 0x22) instr = !instr;
			else if(!instr && cc in guess_seps) cnt[cc] = (cnt[cc]||0)+1;
		}

		cc = [];
		for(end in cnt) if ( Object.prototype.hasOwnProperty.call(cnt, end) ) {
			cc.push([ cnt[end], end ]);
		}

		if ( !cc.length ) {
			cnt = guess_sep_weights;
			for(end in cnt) if ( Object.prototype.hasOwnProperty.call(cnt, end) ) {
				cc.push([ cnt[end], end ]);
			}
		}

		cc.sort(function(a, b) { return a[0] - b[0] || guess_sep_weights[a[1]] - guess_sep_weights[b[1]]; });

		return guess_seps[cc.pop()[1]] || 0x2C;
	}

	function dsv_to_sheet_str(str, opts) {
		var o = opts || {};
		var sep = "";
		if(DENSE != null && o.dense == null) o.dense = DENSE;
		var ws = o.dense ? ([]) : ({});
		var range = ({s: {c:0, r:0}, e: {c:0, r:0}});

		if(str.slice(0,4) == "sep=") {
			// If the line ends in \r\n
			if(str.charCodeAt(5) == 13 && str.charCodeAt(6) == 10 ) {
				sep = str.charAt(4); str = str.slice(7);
			}
			// If line ends in \r OR \n
			else if(str.charCodeAt(5) == 13 || str.charCodeAt(5) == 10 ) {
				sep = str.charAt(4); str = str.slice(6);
			}
			else sep = guess_sep(str.slice(0,1024));
		}
		else if(o && o.FS) sep = o.FS;
		else sep = guess_sep(str.slice(0,1024));
		var R = 0, C = 0, v = 0;
		var start = 0, end = 0, sepcc = sep.charCodeAt(0), instr = false, cc=0, startcc=str.charCodeAt(0);
		str = str.replace(/\r\n/mg, "\n");
		var _re = o.dateNF != null ? dateNF_regex(o.dateNF) : null;
		function finish_cell() {
			var s = str.slice(start, end);
			var cell = ({});
			if(s.charAt(0) == '"' && s.charAt(s.length - 1) == '"') s = s.slice(1,-1).replace(/""/g,'"');
			if(s.length === 0) cell.t = 'z';
			else if(o.raw) { cell.t = 's'; cell.v = s; }
			else if(s.trim().length === 0) { cell.t = 's'; cell.v = s; }
			else if(s.charCodeAt(0) == 0x3D) {
				if(s.charCodeAt(1) == 0x22 && s.charCodeAt(s.length - 1) == 0x22) { cell.t = 's'; cell.v = s.slice(2,-1).replace(/""/g,'"'); }
				else if(fuzzyfmla(s)) { cell.t = 'n'; cell.f = s.slice(1); }
				else { cell.t = 's'; cell.v = s; } }
			else if(s == "TRUE") { cell.t = 'b'; cell.v = true; }
			else if(s == "FALSE") { cell.t = 'b'; cell.v = false; }
			else if(!isNaN(v = fuzzynum(s))) { cell.t = 'n'; if(o.cellText !== false) cell.w = s; cell.v = v; }
			else if(!isNaN(fuzzydate(s).getDate()) || _re && s.match(_re)) {
				cell.z = o.dateNF || SSF._table[14];
				var k = 0;
				if(_re && s.match(_re)){ s=dateNF_fix(s, o.dateNF, (s.match(_re)||[])); k=1; }
				if(o.cellDates) { cell.t = 'd'; cell.v = parseDate(s, k); }
				else { cell.t = 'n'; cell.v = datenum(parseDate(s, k)); }
				if(o.cellText !== false) cell.w = SSF.format(cell.z, cell.v instanceof Date ? datenum(cell.v):cell.v);
				if(!o.cellNF) delete cell.z;
			} else {
				cell.t = 's';
				cell.v = s;
			}
			if(cell.t == 'z'){}
			else if(o.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = cell; }
			else ws[encode_cell({c:C,r:R})] = cell;
			start = end+1; startcc = str.charCodeAt(start);
			if(range.e.c < C) range.e.c = C;
			if(range.e.r < R) range.e.r = R;
			if(cc == sepcc) ++C; else { C = 0; ++R; if(o.sheetRows && o.sheetRows <= R) return true; }
		}
		outer: for(;end < str.length;++end) switch((cc=str.charCodeAt(end))) {
			case 0x22: if(startcc === 0x22) instr = !instr; break;
			case sepcc: case 0x0a: case 0x0d: if(!instr && finish_cell()) break outer; break;
			default: break;
		}
		if(end - start > 0) finish_cell();

		ws['!ref'] = encode_range(range);
		return ws;
	}

	function prn_to_sheet_str(str, opts) {
		if(!(opts && opts.PRN)) return dsv_to_sheet_str(str, opts);
		if(opts.FS) return dsv_to_sheet_str(str, opts);
		if(str.slice(0,4) == "sep=") return dsv_to_sheet_str(str, opts);
		if(str.indexOf("\t") >= 0 || str.indexOf(",") >= 0 || str.indexOf(";") >= 0) return dsv_to_sheet_str(str, opts);
		return aoa_to_sheet(prn_to_aoa_str(str, opts), opts);
	}

	function prn_to_sheet(d, opts) {
		var str = "", bytes = opts.type == 'string' ? [0,0,0,0] : firstbyte(d, opts);
		switch(opts.type) {
			case 'base64': str = Base64.decode(d); break;
			case 'binary': str = d; break;
			case 'buffer':
				if(opts.codepage == 65001) str = d.toString('utf8'); // TODO: test if buf
				else if(opts.codepage && typeof $cptable !== 'undefined') str = $cptable.utils.decode(opts.codepage, d);
				else str = has_buf && Buffer.isBuffer(d) ? d.toString('binary') : a2s(d);
				break;
			case 'array': str = cc2str(d); break;
			case 'string': str = d; break;
			default: throw new Error("Unrecognized type " + opts.type);
		}
		if(bytes[0] == 0xEF && bytes[1] == 0xBB && bytes[2] == 0xBF) str = utf8read(str.slice(3));
		else if(opts.type != 'string' && opts.type != 'buffer' && opts.codepage == 65001) str = utf8read(str);
		else if((opts.type == 'binary') && typeof $cptable !== 'undefined' && opts.codepage)  str = $cptable.utils.decode(opts.codepage, $cptable.utils.encode(28591,str));
		if(str.slice(0,19) == "socialcalc:version:") return ETH.to_sheet(opts.type == 'string' ? str : utf8read(str), opts);
		return prn_to_sheet_str(str, opts);
	}

	function prn_to_workbook(d, opts) { return sheet_to_workbook(prn_to_sheet(d, opts), opts); }

	function sheet_to_prn(ws) {
		var o = [];
		var r = safe_decode_range(ws['!ref']), cell;
		var dense = Array.isArray(ws);
		for(var R = r.s.r; R <= r.e.r; ++R) {
			var oo = [];
			for(var C = r.s.c; C <= r.e.c; ++C) {
				var coord = encode_cell({r:R,c:C});
				cell = dense ? (ws[R]||[])[C] : ws[coord];
				if(!cell || cell.v == null) { oo.push("          "); continue; }
				var w = (cell.w || (format_cell(cell), cell.w) || "").slice(0,10);
				while(w.length < 10) w += " ";
				oo.push(w + (C === 0 ? " " : ""));
			}
			o.push(oo.join(""));
		}
		return o.join("\n");
	}

	return {
		to_workbook: prn_to_workbook,
		to_sheet: prn_to_sheet,
		from_sheet: sheet_to_prn
	};
})();

/* Excel defaults to SYLK but warns if data is not valid */
function read_wb_ID(d, opts) {
	var o = opts || {}, OLD_WTF = !!o.WTF; o.WTF = true;
	try {
		var out = SYLK.to_workbook(d, o);
		o.WTF = OLD_WTF;
		return out;
	} catch(e) {
		o.WTF = OLD_WTF;
		if(!e.message.match(/SYLK bad record ID/) && OLD_WTF) throw e;
		return PRN.to_workbook(d, opts);
	}
}

/* 18.4.7 rPr CT_RPrElt */
function parse_rpr(rpr) {
	var font = {}, m = rpr.match(tagregex), i = 0;
	var pass = false;
	if(m) for(;i!=m.length; ++i) {
		var y = parsexmltag(m[i]);
		switch(y[0].replace(/\w*:/g,"")) {
			/* 18.8.12 condense CT_BooleanProperty */
			/* ** not required . */
			case '<condense': break;
			/* 18.8.17 extend CT_BooleanProperty */
			/* ** not required . */
			case '<extend': break;
			/* 18.8.36 shadow CT_BooleanProperty */
			/* ** not required . */
			case '<shadow':
				if(!y.val) break;
				/* falls through */
			case '<shadow>':
			case '<shadow/>': font.shadow = 1; break;
			case '</shadow>': break;

			/* 18.4.1 charset CT_IntProperty TODO */
			case '<charset':
				if(y.val == '1') break;
				font.cp = CS2CP[parseInt(y.val, 10)];
				break;

			/* 18.4.2 outline CT_BooleanProperty TODO */
			case '<outline':
				if(!y.val) break;
				/* falls through */
			case '<outline>':
			case '<outline/>': font.outline = 1; break;
			case '</outline>': break;

			/* 18.4.5 rFont CT_FontName */
			case '<rFont': font.name = y.val; break;

			/* 18.4.11 sz CT_FontSize */
			case '<sz': font.sz = y.val; break;

			/* 18.4.10 strike CT_BooleanProperty */
			case '<strike':
				if(!y.val) break;
				/* falls through */
			case '<strike>':
			case '<strike/>': font.strike = 1; break;
			case '</strike>': break;

			/* 18.4.13 u CT_UnderlineProperty */
			case '<u':
				if(!y.val) break;
				switch(y.val) {
					case 'double': font.uval = "double"; break;
					case 'singleAccounting': font.uval = "single-accounting"; break;
					case 'doubleAccounting': font.uval = "double-accounting"; break;
				}
				/* falls through */
			case '<u>':
			case '<u/>': font.u = 1; break;
			case '</u>': break;

			/* 18.8.2 b */
			case '<b':
				if(y.val == '0') break;
				/* falls through */
			case '<b>':
			case '<b/>': font.b = 1; break;
			case '</b>': break;

			/* 18.8.26 i */
			case '<i':
				if(y.val == '0') break;
				/* falls through */
			case '<i>':
			case '<i/>': font.i = 1; break;
			case '</i>': break;

			/* 18.3.1.15 color CT_Color TODO: tint, theme, auto, indexed */
			case '<color':
				if(y.rgb) font.color = y.rgb.slice(2,8);
				break;
			case '<color>': case '<color/>': case '</color>': break;

			/* 18.8.18 family ST_FontFamily */
			case '<family': font.family = y.val; break;
			case '<family>': case '<family/>': case '</family>': break;

			/* 18.4.14 vertAlign CT_VerticalAlignFontProperty TODO */
			case '<vertAlign': font.valign = y.val; break;
			case '<vertAlign>': case '<vertAlign/>': case '</vertAlign>': break;

			/* 18.8.35 scheme CT_FontScheme TODO */
			case '<scheme': break;
			case '<scheme>': case '<scheme/>': case '</scheme>': break;

			/* 18.2.10 extLst CT_ExtensionList ? */
			case '<extLst': case '<extLst>': case '</extLst>': break;
			case '<ext': pass = true; break;
			case '</ext>': pass = false; break;
			default:
				if(y[0].charCodeAt(1) !== 47 && !pass) throw new Error('Unrecognized rich format ' + y[0]);
		}
	}
	return font;
}

var parse_rs = (function() {
	var tregex = matchtag("t"), rpregex = matchtag("rPr");
	/* 18.4.4 r CT_RElt */
	function parse_r(r) {
		/* 18.4.12 t ST_Xstring */
		var t = r.match(tregex)/*, cp = 65001*/;
		if(!t) return {t:"s", v:""};

		var o = ({t:'s', v:unescapexml(t[1])});
		var rpr = r.match(rpregex);
		if(rpr) o.s = parse_rpr(rpr[1]);
		return o;
	}
	var rregex = /<(?:\w+:)?r>/g, rend = /<\/(?:\w+:)?r>/;
	return function parse_rs(rs) {
		return rs.replace(rregex,"").split(rend).map(parse_r).filter(function(r) { return r.v; });
	};
})();


/* Parse a list of <r> tags */
var rs_to_html = (function parse_rs_factory() {
	var nlregex = /(\r\n|\n)/g;
	function parse_rpr2(font, intro, outro) {
		var style = [];

		if(font.u) style.push("text-decoration: underline;");
		if(font.uval) style.push("text-underline-style:" + font.uval + ";");
		if(font.sz) style.push("font-size:" + font.sz + "pt;");
		if(font.outline) style.push("text-effect: outline;");
		if(font.shadow) style.push("text-shadow: auto;");
		intro.push('<span style="' + style.join("") + '">');

		if(font.b) { intro.push("<b>"); outro.push("</b>"); }
		if(font.i) { intro.push("<i>"); outro.push("</i>"); }
		if(font.strike) { intro.push("<s>"); outro.push("</s>"); }

		var align = font.valign || "";
		if(align == "superscript" || align == "super") align = "sup";
		else if(align == "subscript") align = "sub";
		if(align != "") { intro.push("<" + align + ">"); outro.push("</" + align + ">"); }

		outro.push("</span>");
		return font;
	}

	/* 18.4.4 r CT_RElt */
	function r_to_html(r) {
		var terms = [[],r.v,[]];
		if(!r.v) return "";

		if(r.s) parse_rpr2(r.s, terms[0], terms[2]);

		return terms[0].join("") + terms[1].replace(nlregex,'<br/>') + terms[2].join("");
	}

	return function parse_rs(rs) {
		return rs.map(r_to_html).join("");
	};
})();

/* 18.4.8 si CT_Rst */
var sitregex = /<(?:\w+:)?t[^>]*>([^<]*)<\/(?:\w+:)?t>/g, sirregex = /<(?:\w+:)?r>/;
var sirphregex = /<(?:\w+:)?rPh.*?>([\s\S]*?)<\/(?:\w+:)?rPh>/g;
function parse_si(x, opts) {
	var html = opts ? opts.cellHTML : true;
	var z = {};
	if(!x) return { t: "" };
	//var y;
	/* 18.4.12 t ST_Xstring (Plaintext String) */
	// TODO: is whitespace actually valid here?
	if(x.match(/^\s*<(?:\w+:)?t[^>]*>/)) {
		z.t = unescapexml(utf8read(x.slice(x.indexOf(">")+1).split(/<\/(?:\w+:)?t>/)[0]||""));
		z.r = utf8read(x);
		if(html) z.h = escapehtml(z.t);
	}
	/* 18.4.4 r CT_RElt (Rich Text Run) */
	else if((/*y = */x.match(sirregex))) {
		z.r = utf8read(x);
		z.t = unescapexml(utf8read((x.replace(sirphregex, '').match(sitregex)||[]).join("").replace(tagregex,"")));
		if(html) z.h = rs_to_html(parse_rs(z.r));
	}
	/* 18.4.3 phoneticPr CT_PhoneticPr (TODO: needed for Asian support) */
	/* 18.4.6 rPh CT_PhoneticRun (TODO: needed for Asian support) */
	return z;
}

/* 18.4 Shared String Table */
var sstr0 = /<(?:\w+:)?sst([^>]*)>([\s\S]*)<\/(?:\w+:)?sst>/;
var sstr1 = /<(?:\w+:)?(?:si|sstItem)>/g;
var sstr2 = /<\/(?:\w+:)?(?:si|sstItem)>/;
function parse_sst_xml(data, opts) {
	var s = ([]), ss = "";
	if(!data) return s;
	/* 18.4.9 sst CT_Sst */
	var sst = data.match(sstr0);
	if(sst) {
		ss = sst[2].replace(sstr1,"").split(sstr2);
		for(var i = 0; i != ss.length; ++i) {
			var o = parse_si(ss[i].trim(), opts);
			if(o != null) s[s.length] = o;
		}
		sst = parsexmltag(sst[1]); s.Count = sst.count; s.Unique = sst.uniqueCount;
	}
	return s;
}

var straywsregex = /^\s|\s$|[\t\n\r]/;
function write_sst_xml(sst, opts) {
	if(!opts.bookSST) return "";
	var o = [XML_HEADER];
	o[o.length] = (writextag('sst', null, {
		xmlns: XMLNS_main[0],
		count: sst.Count,
		uniqueCount: sst.Unique
	}));
	for(var i = 0; i != sst.length; ++i) { if(sst[i] == null) continue;
		var s = sst[i];
		var sitag = "<si>";
		if(s.r) sitag += s.r;
		else {
			sitag += "<t";
			if(!s.t) s.t = "";
			if(s.t.match(straywsregex)) sitag += ' xml:space="preserve"';
			sitag += ">" + escapexml(s.t) + "</t>";
		}
		sitag += "</si>";
		o[o.length] = (sitag);
	}
	if(o.length>2){ o[o.length] = ('</sst>'); o[1]=o[1].replace("/>",">"); }
	return o.join("");
}
function hex2RGB(h) {
	var o = h.slice(h[0]==="#"?1:0).slice(0,6);
	return [parseInt(o.slice(0,2),16),parseInt(o.slice(2,4),16),parseInt(o.slice(4,6),16)];
}
function rgb2Hex(rgb) {
	for(var i=0,o=1; i!=3; ++i) o = o*256 + (rgb[i]>255?255:rgb[i]<0?0:rgb[i]);
	return o.toString(16).toUpperCase().slice(1);
}

function rgb2HSL(rgb) {
	var R = rgb[0]/255, G = rgb[1]/255, B=rgb[2]/255;
	var M = Math.max(R, G, B), m = Math.min(R, G, B), C = M - m;
	if(C === 0) return [0, 0, R];

	var H6 = 0, S = 0, L2 = (M + m);
	S = C / (L2 > 1 ? 2 - L2 : L2);
	switch(M){
		case R: H6 = ((G - B) / C + 6)%6; break;
		case G: H6 = ((B - R) / C + 2); break;
		case B: H6 = ((R - G) / C + 4); break;
	}
	return [H6 / 6, S, L2 / 2];
}

function hsl2RGB(hsl){
	var H = hsl[0], S = hsl[1], L = hsl[2];
	var C = S * 2 * (L < 0.5 ? L : 1 - L), m = L - C/2;
	var rgb = [m,m,m], h6 = 6*H;

	var X;
	if(S !== 0) switch(h6|0) {
		case 0: case 6: X = C * h6; rgb[0] += C; rgb[1] += X; break;
		case 1: X = C * (2 - h6);   rgb[0] += X; rgb[1] += C; break;
		case 2: X = C * (h6 - 2);   rgb[1] += C; rgb[2] += X; break;
		case 3: X = C * (4 - h6);   rgb[1] += X; rgb[2] += C; break;
		case 4: X = C * (h6 - 4);   rgb[2] += C; rgb[0] += X; break;
		case 5: X = C * (6 - h6);   rgb[2] += X; rgb[0] += C; break;
	}
	for(var i = 0; i != 3; ++i) rgb[i] = Math.round(rgb[i]*255);
	return rgb;
}

/* 18.8.3 bgColor tint algorithm */
function rgb_tint(hex, tint) {
	if(tint === 0) return hex;
	var hsl = rgb2HSL(hex2RGB(hex));
	if (tint < 0) hsl[2] = hsl[2] * (1 + tint);
	else hsl[2] = 1 - (1 - hsl[2]) * (1 - tint);
	return rgb2Hex(hsl2RGB(hsl));
}

/* 18.3.1.13 width calculations */
/* [MS-OI29500] 2.1.595 Column Width & Formatting */
var DEF_MDW = 6, MAX_MDW = 15, MIN_MDW = 1, MDW = DEF_MDW;
function width2px(width) { return Math.floor(( width + (Math.round(128/MDW))/256 )* MDW ); }
function px2char(px) { return (Math.floor((px - 5)/MDW * 100 + 0.5))/100; }
function char2width(chr) { return (Math.round((chr * MDW + 5)/MDW*256))/256; }
//function px2char_(px) { return (((px - 5)/MDW * 100 + 0.5))/100; }
//function char2width_(chr) { return (((chr * MDW + 5)/MDW*256))/256; }
function cycle_width(collw) { return char2width(px2char(width2px(collw))); }
/* XLSX/XLSB/XLS specify width in units of MDW */
function find_mdw_colw(collw) {
	var delta = Math.abs(collw - cycle_width(collw)), _MDW = MDW;
	if(delta > 0.005) for(MDW=MIN_MDW; MDW<MAX_MDW; ++MDW) if(Math.abs(collw - cycle_width(collw)) <= delta) { delta = Math.abs(collw - cycle_width(collw)); _MDW = MDW; }
	MDW = _MDW;
}
/* XLML specifies width in terms of pixels */
/*function find_mdw_wpx(wpx) {
	var delta = Infinity, guess = 0, _MDW = MIN_MDW;
	for(MDW=MIN_MDW; MDW<MAX_MDW; ++MDW) {
		guess = char2width_(px2char_(wpx))*256;
		guess = (guess) % 1;
		if(guess > 0.5) guess--;
		if(Math.abs(guess) < delta) { delta = Math.abs(guess); _MDW = MDW; }
	}
	MDW = _MDW;
}*/

function process_col(coll) {
	if(coll.width) {
		coll.wpx = width2px(coll.width);
		coll.wch = px2char(coll.wpx);
		coll.MDW = MDW;
	} else if(coll.wpx) {
		coll.wch = px2char(coll.wpx);
		coll.width = char2width(coll.wch);
		coll.MDW = MDW;
	} else if(typeof coll.wch == 'number') {
		coll.width = char2width(coll.wch);
		coll.wpx = width2px(coll.width);
		coll.MDW = MDW;
	}
	if(coll.customWidth) delete coll.customWidth;
}

var DEF_PPI = 96, PPI = DEF_PPI;
function px2pt(px) { return px * 96 / PPI; }
function pt2px(pt) { return pt * PPI / 96; }

/* [MS-EXSPXML3] 2.4.54 ST_enmPattern */
var XLMLPatternTypeMap = {
	"None": "none",
	"Solid": "solid",
	"Gray50": "mediumGray",
	"Gray75": "darkGray",
	"Gray25": "lightGray",
	"HorzStripe": "darkHorizontal",
	"VertStripe": "darkVertical",
	"ReverseDiagStripe": "darkDown",
	"DiagStripe": "darkUp",
	"DiagCross": "darkGrid",
	"ThickDiagCross": "darkTrellis",
	"ThinHorzStripe": "lightHorizontal",
	"ThinVertStripe": "lightVertical",
	"ThinReverseDiagStripe": "lightDown",
	"ThinHorzCross": "lightGrid"
};

/* 18.8.5 borders CT_Borders */
function parse_borders(t, styles, themes, opts) {
	styles.Borders = [];
	var border = {};
	var pass = false;
	(t[0].match(tagregex)||[]).forEach(function(x) {
		var y = parsexmltag(x);
		switch(strip_ns(y[0])) {
			case '<borders': case '<borders>': case '</borders>': break;

			/* 18.8.4 border CT_Border */
			case '<border': case '<border>': case '<border/>':
				border = {};
				if(y.diagonalUp) border.diagonalUp = parsexmlbool(y.diagonalUp);
				if(y.diagonalDown) border.diagonalDown = parsexmlbool(y.diagonalDown);
				styles.Borders.push(border);
				break;
			case '</border>': break;

			/* note: not in spec, appears to be CT_BorderPr */
			case '<left/>': break;
			case '<left': case '<left>': break;
			case '</left>': break;

			/* note: not in spec, appears to be CT_BorderPr */
			case '<right/>': break;
			case '<right': case '<right>': break;
			case '</right>': break;

			/* 18.8.43 top CT_BorderPr */
			case '<top/>': break;
			case '<top': case '<top>': break;
			case '</top>': break;

			/* 18.8.6 bottom CT_BorderPr */
			case '<bottom/>': break;
			case '<bottom': case '<bottom>': break;
			case '</bottom>': break;

			/* 18.8.13 diagonal CT_BorderPr */
			case '<diagonal': case '<diagonal>': case '<diagonal/>': break;
			case '</diagonal>': break;

			/* 18.8.25 horizontal CT_BorderPr */
			case '<horizontal': case '<horizontal>': case '<horizontal/>': break;
			case '</horizontal>': break;

			/* 18.8.44 vertical CT_BorderPr */
			case '<vertical': case '<vertical>': case '<vertical/>': break;
			case '</vertical>': break;

			/* 18.8.37 start CT_BorderPr */
			case '<start': case '<start>': case '<start/>': break;
			case '</start>': break;

			/* 18.8.16 end CT_BorderPr */
			case '<end': case '<end>': case '<end/>': break;
			case '</end>': break;

			/* 18.8.? color CT_Color */
			case '<color': case '<color>':
				break;
			case '<color/>': case '</color>': break;

			/* 18.2.10 extLst CT_ExtensionList ? */
			case '<extLst': case '<extLst>': case '</extLst>': break;
			case '<ext': pass = true; break;
			case '</ext>': pass = false; break;
			default: if(opts && opts.WTF) {
				if(!pass) throw new Error('unrecognized ' + y[0] + ' in borders');
			}
		}
	});
}

/* 18.8.21 fills CT_Fills */
function parse_fills(t, styles, themes, opts) {
	styles.Fills = [];
	var fill = {};
	var pass = false;
	(t[0].match(tagregex)||[]).forEach(function(x) {
		var y = parsexmltag(x);
		switch(strip_ns(y[0])) {
			case '<fills': case '<fills>': case '</fills>': break;

			/* 18.8.20 fill CT_Fill */
			case '<fill>': case '<fill': case '<fill/>':
				fill = {}; styles.Fills.push(fill); break;
			case '</fill>': break;

			/* 18.8.24 gradientFill CT_GradientFill */
			case '<gradientFill>': break;
			case '<gradientFill':
			case '</gradientFill>': styles.Fills.push(fill); fill = {}; break;

			/* 18.8.32 patternFill CT_PatternFill */
			case '<patternFill': case '<patternFill>':
				if(y.patternType) fill.patternType = y.patternType;
				break;
			case '<patternFill/>': case '</patternFill>': break;

			/* 18.8.3 bgColor CT_Color */
			case '<bgColor':
				if(!fill.bgColor) fill.bgColor = {};
				if(y.indexed) fill.bgColor.indexed = parseInt(y.indexed, 10);
				if(y.theme) fill.bgColor.theme = parseInt(y.theme, 10);
				if(y.tint) fill.bgColor.tint = parseFloat(y.tint);
				/* Excel uses ARGB strings */
				if(y.rgb) fill.bgColor.rgb = y.rgb.slice(-6);
				break;
			case '<bgColor/>': case '</bgColor>': break;

			/* 18.8.19 fgColor CT_Color */
			case '<fgColor':
				if(!fill.fgColor) fill.fgColor = {};
				if(y.theme) fill.fgColor.theme = parseInt(y.theme, 10);
				if(y.tint) fill.fgColor.tint = parseFloat(y.tint);
				/* Excel uses ARGB strings */
				if(y.rgb != null) fill.fgColor.rgb = y.rgb.slice(-6);
				break;
			case '<fgColor/>': case '</fgColor>': break;

			/* 18.8.38 stop CT_GradientStop */
			case '<stop': case '<stop/>': break;
			case '</stop>': break;

			/* 18.8.? color CT_Color */
			case '<color': case '<color/>': break;
			case '</color>': break;

			/* 18.2.10 extLst CT_ExtensionList ? */
			case '<extLst': case '<extLst>': case '</extLst>': break;
			case '<ext': pass = true; break;
			case '</ext>': pass = false; break;
			default: if(opts && opts.WTF) {
				if(!pass) throw new Error('unrecognized ' + y[0] + ' in fills');
			}
		}
	});
}

/* 18.8.23 fonts CT_Fonts */
function parse_fonts(t, styles, themes, opts) {
	styles.Fonts = [];
	var font = {};
	var pass = false;
	(t[0].match(tagregex)||[]).forEach(function(x) {
		var y = parsexmltag(x);
		switch(strip_ns(y[0])) {
			case '<fonts': case '<fonts>': case '</fonts>': break;

			/* 18.8.22 font CT_Font */
			case '<font': case '<font>': break;
			case '</font>': case '<font/>':
				styles.Fonts.push(font);
				font = {};
				break;

			/* 18.8.29 name CT_FontName */
			case '<name': if(y.val) font.name = utf8read(y.val); break;
			case '<name/>': case '</name>': break;

			/* 18.8.2  b CT_BooleanProperty */
			case '<b': font.bold = y.val ? parsexmlbool(y.val) : 1; break;
			case '<b/>': font.bold = 1; break;

			/* 18.8.26 i CT_BooleanProperty */
			case '<i': font.italic = y.val ? parsexmlbool(y.val) : 1; break;
			case '<i/>': font.italic = 1; break;

			/* 18.4.13 u CT_UnderlineProperty */
			case '<u':
				switch(y.val) {
					case "none": font.underline = 0x00; break;
					case "single": font.underline = 0x01; break;
					case "double": font.underline = 0x02; break;
					case "singleAccounting": font.underline = 0x21; break;
					case "doubleAccounting": font.underline = 0x22; break;
				} break;
			case '<u/>': font.underline = 1; break;

			/* 18.4.10 strike CT_BooleanProperty */
			case '<strike': font.strike = y.val ? parsexmlbool(y.val) : 1; break;
			case '<strike/>': font.strike = 1; break;

			/* 18.4.2  outline CT_BooleanProperty */
			case '<outline': font.outline = y.val ? parsexmlbool(y.val) : 1; break;
			case '<outline/>': font.outline = 1; break;

			/* 18.8.36 shadow CT_BooleanProperty */
			case '<shadow': font.shadow = y.val ? parsexmlbool(y.val) : 1; break;
			case '<shadow/>': font.shadow = 1; break;

			/* 18.8.12 condense CT_BooleanProperty */
			case '<condense': font.condense = y.val ? parsexmlbool(y.val) : 1; break;
			case '<condense/>': font.condense = 1; break;

			/* 18.8.17 extend CT_BooleanProperty */
			case '<extend': font.extend = y.val ? parsexmlbool(y.val) : 1; break;
			case '<extend/>': font.extend = 1; break;

			/* 18.4.11 sz CT_FontSize */
			case '<sz': if(y.val) font.sz = +y.val; break;
			case '<sz/>': case '</sz>': break;

			/* 18.4.14 vertAlign CT_VerticalAlignFontProperty */
			case '<vertAlign': if(y.val) font.vertAlign = y.val; break;
			case '<vertAlign/>': case '</vertAlign>': break;

			/* 18.8.18 family CT_FontFamily */
			case '<family': if(y.val) font.family = parseInt(y.val,10); break;
			case '<family/>': case '</family>': break;

			/* 18.8.35 scheme CT_FontScheme */
			case '<scheme': if(y.val) font.scheme = y.val; break;
			case '<scheme/>': case '</scheme>': break;

			/* 18.4.1 charset CT_IntProperty */
			case '<charset':
				if(y.val == '1') break;
				y.codepage = CS2CP[parseInt(y.val, 10)];
				break;

			/* 18.?.? color CT_Color */
			case '<color':
				if(!font.color) font.color = {};
				if(y.auto) font.color.auto = parsexmlbool(y.auto);

				if(y.rgb) font.color.rgb = y.rgb.slice(-6);
				else if(y.indexed) {
					font.color.index = parseInt(y.indexed, 10);
					var icv = XLSIcv[font.color.index];
					if(font.color.index == 81) icv = XLSIcv[1];
					if(!icv) icv = XLSIcv[1]; //throw new Error(x); // note: 206 is valid
					font.color.rgb = icv[0].toString(16) + icv[1].toString(16) + icv[2].toString(16);
				} else if(y.theme) {
					font.color.theme = parseInt(y.theme, 10);
					if(y.tint) font.color.tint = parseFloat(y.tint);
					if(y.theme && themes.themeElements && themes.themeElements.clrScheme) {
						font.color.rgb = rgb_tint(themes.themeElements.clrScheme[font.color.theme].rgb, font.color.tint || 0);
					}
				}

				break;
			case '<color/>': case '</color>': break;

			/* note: sometimes mc:AlternateContent appears bare */
			case '<AlternateContent': pass = true; break;
			case '</AlternateContent>': pass = false; break;

			/* 18.2.10 extLst CT_ExtensionList ? */
			case '<extLst': case '<extLst>': case '</extLst>': break;
			case '<ext': pass = true; break;
			case '</ext>': pass = false; break;
			default: if(opts && opts.WTF) {
				if(!pass) throw new Error('unrecognized ' + y[0] + ' in fonts');
			}
		}
	});
}

/* 18.8.31 numFmts CT_NumFmts */
function parse_numFmts(t, styles, opts) {
	styles.NumberFmt = [];
	var k/*Array<number>*/ = (keys(SSF._table));
	for(var i=0; i < k.length; ++i) styles.NumberFmt[k[i]] = SSF._table[k[i]];
	var m = t[0].match(tagregex);
	if(!m) return;
	for(i=0; i < m.length; ++i) {
		var y = parsexmltag(m[i]);
		switch(strip_ns(y[0])) {
			case '<numFmts': case '</numFmts>': case '<numFmts/>': case '<numFmts>': break;
			case '<numFmt': {
				var f=unescapexml(utf8read(y.formatCode)), j=parseInt(y.numFmtId,10);
				styles.NumberFmt[j] = f;
				if(j>0) {
					if(j > 0x188) {
						for(j = 0x188; j > 0x3c; --j) if(styles.NumberFmt[j] == null) break;
						styles.NumberFmt[j] = f;
					}
					SSF.load(f,j);
				}
			} break;
			case '</numFmt>': break;
			default: if(opts.WTF) throw new Error('unrecognized ' + y[0] + ' in numFmts');
		}
	}
}

function write_numFmts(NF) {
	var o = ["<numFmts>"];
	[[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
		for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) o[o.length] = (writextag('numFmt',null,{numFmtId:i,formatCode:escapexml(NF[i])}));
	});
	if(o.length === 1) return "";
	o[o.length] = ("</numFmts>");
	o[0] = writextag('numFmts', null, { count:o.length-2 }).replace("/>", ">");
	return o.join("");
}

/* 18.8.10 cellXfs CT_CellXfs */
var cellXF_uint = [ "numFmtId", "fillId", "fontId", "borderId", "xfId" ];
var cellXF_bool = [ "applyAlignment", "applyBorder", "applyFill", "applyFont", "applyNumberFormat", "applyProtection", "pivotButton", "quotePrefix" ];
function parse_cellXfs(t, styles, opts) {
	styles.CellXf = [];
	var xf;
	var pass = false;
	(t[0].match(tagregex)||[]).forEach(function(x) {
		var y = parsexmltag(x), i = 0;
		switch(strip_ns(y[0])) {
			case '<cellXfs': case '<cellXfs>': case '<cellXfs/>': case '</cellXfs>': break;

			/* 18.8.45 xf CT_Xf */
			case '<xf': case '<xf/>':
				xf = y;
				delete xf[0];
				for(i = 0; i < cellXF_uint.length; ++i) if(xf[cellXF_uint[i]])
					xf[cellXF_uint[i]] = parseInt(xf[cellXF_uint[i]], 10);
				for(i = 0; i < cellXF_bool.length; ++i) if(xf[cellXF_bool[i]])
					xf[cellXF_bool[i]] = parsexmlbool(xf[cellXF_bool[i]]);
				if(styles.NumberFmt && xf.numFmtId > 0x188) {
					for(i = 0x188; i > 0x3c; --i) if(styles.NumberFmt[xf.numFmtId] == styles.NumberFmt[i]) { xf.numFmtId = i; break; }
				}
				styles.CellXf.push(xf); break;
			case '</xf>': break;

			/* 18.8.1 alignment CT_CellAlignment */
			case '<alignment': case '<alignment/>':
				var alignment = {};
				if(y.vertical) alignment.vertical = y.vertical;
				if(y.horizontal) alignment.horizontal = y.horizontal;
				if(y.textRotation != null) alignment.textRotation = y.textRotation;
				if(y.indent) alignment.indent = y.indent;
				if(y.wrapText) alignment.wrapText = parsexmlbool(y.wrapText);
				xf.alignment = alignment;
				break;
			case '</alignment>': break;

			/* 18.8.33 protection CT_CellProtection */
			case '<protection':
				break;
			case '</protection>': case '<protection/>': break;

			/* note: sometimes mc:AlternateContent appears bare */
			case '<AlternateContent': pass = true; break;
			case '</AlternateContent>': pass = false; break;

			/* 18.2.10 extLst CT_ExtensionList ? */
			case '<extLst': case '<extLst>': case '</extLst>': break;
			case '<ext': pass = true; break;
			case '</ext>': pass = false; break;
			default: if(opts && opts.WTF) {
				if(!pass) throw new Error('unrecognized ' + y[0] + ' in cellXfs');
			}
		}
	});
}

function write_cellXfs(cellXfs) {
	var o = [];
	o[o.length] = (writextag('cellXfs',null));
	cellXfs.forEach(function(c) {
		o[o.length] = (writextag('xf', null, c));
	});
	o[o.length] = ("</cellXfs>");
	if(o.length === 2) return "";
	o[0] = writextag('cellXfs',null, {count:o.length-2}).replace("/>",">");
	return o.join("");
}

/* 18.8 Styles CT_Stylesheet*/
var parse_sty_xml= (function make_pstyx() {
var numFmtRegex = /<(?:\w+:)?numFmts([^>]*)>[\S\s]*?<\/(?:\w+:)?numFmts>/;
var cellXfRegex = /<(?:\w+:)?cellXfs([^>]*)>[\S\s]*?<\/(?:\w+:)?cellXfs>/;
var fillsRegex = /<(?:\w+:)?fills([^>]*)>[\S\s]*?<\/(?:\w+:)?fills>/;
var fontsRegex = /<(?:\w+:)?fonts([^>]*)>[\S\s]*?<\/(?:\w+:)?fonts>/;
var bordersRegex = /<(?:\w+:)?borders([^>]*)>[\S\s]*?<\/(?:\w+:)?borders>/;

return function parse_sty_xml(data, themes, opts) {
	var styles = {};
	if(!data) return styles;
	data = data.replace(/<!--([\s\S]*?)-->/mg,"").replace(/<!DOCTYPE[^\[]*\[[^\]]*\]>/gm,"");
	/* 18.8.39 styleSheet CT_Stylesheet */
	var t;

	/* 18.8.31 numFmts CT_NumFmts ? */
	if((t=data.match(numFmtRegex))) parse_numFmts(t, styles, opts);

	/* 18.8.23 fonts CT_Fonts ? */
	if((t=data.match(fontsRegex))) parse_fonts(t, styles, themes, opts);

	/* 18.8.21 fills CT_Fills ? */
	if((t=data.match(fillsRegex))) parse_fills(t, styles, themes, opts);

	/* 18.8.5  borders CT_Borders ? */
	if((t=data.match(bordersRegex))) parse_borders(t, styles, themes, opts);

	/* 18.8.9  cellStyleXfs CT_CellStyleXfs ? */
	/* 18.8.8  cellStyles CT_CellStyles ? */

	/* 18.8.10 cellXfs CT_CellXfs ? */
	if((t=data.match(cellXfRegex))) parse_cellXfs(t, styles, opts);

	/* 18.8.15 dxfs CT_Dxfs ? */
	/* 18.8.42 tableStyles CT_TableStyles ? */
	/* 18.8.11 colors CT_Colors ? */
	/* 18.2.10 extLst CT_ExtensionList ? */

	return styles;
};
})();

function write_sty_xml(wb, opts) {
	var o = [XML_HEADER, writextag('styleSheet', null, {
		'xmlns': XMLNS_main[0],
		'xmlns:vt': XMLNS.vt
	})], w;
	if(wb.SSF && (w = write_numFmts(wb.SSF)) != null) o[o.length] = w;
	o[o.length] = ('<fonts count="1"><font><sz val="12"/><color theme="1"/><name val="Calibri"/><family val="2"/><scheme val="minor"/></font></fonts>');
	o[o.length] = ('<fills count="2"><fill><patternFill patternType="none"/></fill><fill><patternFill patternType="gray125"/></fill></fills>');
	o[o.length] = ('<borders count="1"><border><left/><right/><top/><bottom/><diagonal/></border></borders>');
	o[o.length] = ('<cellStyleXfs count="1"><xf numFmtId="0" fontId="0" fillId="0" borderId="0"/></cellStyleXfs>');
	if((w = write_cellXfs(opts.cellXfs))) o[o.length] = (w);
	o[o.length] = ('<cellStyles count="1"><cellStyle name="Normal" xfId="0" builtinId="0"/></cellStyles>');
	o[o.length] = ('<dxfs count="0"/>');
	o[o.length] = ('<tableStyles count="0" defaultTableStyle="TableStyleMedium9" defaultPivotStyle="PivotStyleMedium4"/>');

	if(o.length>2){ o[o.length] = ('</styleSheet>'); o[1]=o[1].replace("/>",">"); }
	return o.join("");
}
/* Even though theme layout is dk1 lt1 dk2 lt2, true order is lt1 dk1 lt2 dk2 */
var XLSXThemeClrScheme = [
	'</a:lt1>', '</a:dk1>', '</a:lt2>', '</a:dk2>',
	'</a:accent1>', '</a:accent2>', '</a:accent3>',
	'</a:accent4>', '</a:accent5>', '</a:accent6>',
	'</a:hlink>', '</a:folHlink>'
];
/* 20.1.6.2 clrScheme CT_ColorScheme */
function parse_clrScheme(t, themes, opts) {
	themes.themeElements.clrScheme = [];
	var color = {};
	(t[0].match(tagregex)||[]).forEach(function(x) {
		var y = parsexmltag(x);
		switch(y[0]) {
			/* 20.1.6.2 clrScheme (Color Scheme) CT_ColorScheme */
			case '<a:clrScheme': case '</a:clrScheme>': break;

			/* 20.1.2.3.32 srgbClr CT_SRgbColor */
			case '<a:srgbClr':
				color.rgb = y.val; break;

			/* 20.1.2.3.33 sysClr CT_SystemColor */
			case '<a:sysClr':
				color.rgb = y.lastClr; break;

			/* 20.1.4.1.1 accent1 (Accent 1) */
			/* 20.1.4.1.2 accent2 (Accent 2) */
			/* 20.1.4.1.3 accent3 (Accent 3) */
			/* 20.1.4.1.4 accent4 (Accent 4) */
			/* 20.1.4.1.5 accent5 (Accent 5) */
			/* 20.1.4.1.6 accent6 (Accent 6) */
			/* 20.1.4.1.9 dk1 (Dark 1) */
			/* 20.1.4.1.10 dk2 (Dark 2) */
			/* 20.1.4.1.15 folHlink (Followed Hyperlink) */
			/* 20.1.4.1.19 hlink (Hyperlink) */
			/* 20.1.4.1.22 lt1 (Light 1) */
			/* 20.1.4.1.23 lt2 (Light 2) */
			case '<a:dk1>': case '</a:dk1>':
			case '<a:lt1>': case '</a:lt1>':
			case '<a:dk2>': case '</a:dk2>':
			case '<a:lt2>': case '</a:lt2>':
			case '<a:accent1>': case '</a:accent1>':
			case '<a:accent2>': case '</a:accent2>':
			case '<a:accent3>': case '</a:accent3>':
			case '<a:accent4>': case '</a:accent4>':
			case '<a:accent5>': case '</a:accent5>':
			case '<a:accent6>': case '</a:accent6>':
			case '<a:hlink>': case '</a:hlink>':
			case '<a:folHlink>': case '</a:folHlink>':
				if (y[0].charAt(1) === '/') {
					themes.themeElements.clrScheme[XLSXThemeClrScheme.indexOf(y[0])] = color;
					color = {};
				} else {
					color.name = y[0].slice(3, y[0].length - 1);
				}
				break;

			default: if(opts && opts.WTF) throw new Error('Unrecognized ' + y[0] + ' in clrScheme');
		}
	});
}

/* 20.1.4.1.18 fontScheme CT_FontScheme */
function parse_fontScheme() { }

/* 20.1.4.1.15 fmtScheme CT_StyleMatrix */
function parse_fmtScheme() { }

var clrsregex = /<a:clrScheme([^>]*)>[\s\S]*<\/a:clrScheme>/;
var fntsregex = /<a:fontScheme([^>]*)>[\s\S]*<\/a:fontScheme>/;
var fmtsregex = /<a:fmtScheme([^>]*)>[\s\S]*<\/a:fmtScheme>/;

/* 20.1.6.10 themeElements CT_BaseStyles */
function parse_themeElements(data, themes, opts) {
	themes.themeElements = {};

	var t;

	[
		/* clrScheme CT_ColorScheme */
		['clrScheme', clrsregex, parse_clrScheme],
		/* fontScheme CT_FontScheme */
		['fontScheme', fntsregex, parse_fontScheme],
		/* fmtScheme CT_StyleMatrix */
		['fmtScheme', fmtsregex, parse_fmtScheme]
	].forEach(function(m) {
		if(!(t=data.match(m[1]))) throw new Error(m[0] + ' not found in themeElements');
		m[2](t, themes, opts);
	});
}

var themeltregex = /<a:themeElements([^>]*)>[\s\S]*<\/a:themeElements>/;

/* 14.2.7 Theme Part */
function parse_theme_xml(data, opts) {
	/* 20.1.6.9 theme CT_OfficeStyleSheet */
	if(!data || data.length === 0) data = write_theme();

	var t;
	var themes = {};

	/* themeElements CT_BaseStyles */
	if(!(t=data.match(themeltregex))) throw new Error('themeElements not found in theme');
	parse_themeElements(t[0], themes, opts);
	themes.raw = data;
	return themes;
}

function write_theme(Themes, opts) {
	if(opts && opts.themeXLSX) return opts.themeXLSX;
	if(Themes && typeof Themes.raw == "string") return Themes.raw;
	var o = [XML_HEADER];
	o[o.length] = '<a:theme xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" name="Office Theme">';
	o[o.length] =  '<a:themeElements>';

	o[o.length] =   '<a:clrScheme name="Office">';
	o[o.length] =    '<a:dk1><a:sysClr val="windowText" lastClr="000000"/></a:dk1>';
	o[o.length] =    '<a:lt1><a:sysClr val="window" lastClr="FFFFFF"/></a:lt1>';
	o[o.length] =    '<a:dk2><a:srgbClr val="1F497D"/></a:dk2>';
	o[o.length] =    '<a:lt2><a:srgbClr val="EEECE1"/></a:lt2>';
	o[o.length] =    '<a:accent1><a:srgbClr val="4F81BD"/></a:accent1>';
	o[o.length] =    '<a:accent2><a:srgbClr val="C0504D"/></a:accent2>';
	o[o.length] =    '<a:accent3><a:srgbClr val="9BBB59"/></a:accent3>';
	o[o.length] =    '<a:accent4><a:srgbClr val="8064A2"/></a:accent4>';
	o[o.length] =    '<a:accent5><a:srgbClr val="4BACC6"/></a:accent5>';
	o[o.length] =    '<a:accent6><a:srgbClr val="F79646"/></a:accent6>';
	o[o.length] =    '<a:hlink><a:srgbClr val="0000FF"/></a:hlink>';
	o[o.length] =    '<a:folHlink><a:srgbClr val="800080"/></a:folHlink>';
	o[o.length] =   '</a:clrScheme>';

	o[o.length] =   '<a:fontScheme name="Office">';
	o[o.length] =    '<a:majorFont>';
	o[o.length] =     '<a:latin typeface="Cambria"/>';
	o[o.length] =     '<a:ea typeface=""/>';
	o[o.length] =     '<a:cs typeface=""/>';
	o[o.length] =     '<a:font script="Jpan" typeface="ＭＳ Ｐゴシック"/>';
	o[o.length] =     '<a:font script="Hang" typeface="맑은 고딕"/>';
	o[o.length] =     '<a:font script="Hans" typeface="宋体"/>';
	o[o.length] =     '<a:font script="Hant" typeface="新細明體"/>';
	o[o.length] =     '<a:font script="Arab" typeface="Times New Roman"/>';
	o[o.length] =     '<a:font script="Hebr" typeface="Times New Roman"/>';
	o[o.length] =     '<a:font script="Thai" typeface="Tahoma"/>';
	o[o.length] =     '<a:font script="Ethi" typeface="Nyala"/>';
	o[o.length] =     '<a:font script="Beng" typeface="Vrinda"/>';
	o[o.length] =     '<a:font script="Gujr" typeface="Shruti"/>';
	o[o.length] =     '<a:font script="Khmr" typeface="MoolBoran"/>';
	o[o.length] =     '<a:font script="Knda" typeface="Tunga"/>';
	o[o.length] =     '<a:font script="Guru" typeface="Raavi"/>';
	o[o.length] =     '<a:font script="Cans" typeface="Euphemia"/>';
	o[o.length] =     '<a:font script="Cher" typeface="Plantagenet Cherokee"/>';
	o[o.length] =     '<a:font script="Yiii" typeface="Microsoft Yi Baiti"/>';
	o[o.length] =     '<a:font script="Tibt" typeface="Microsoft Himalaya"/>';
	o[o.length] =     '<a:font script="Thaa" typeface="MV Boli"/>';
	o[o.length] =     '<a:font script="Deva" typeface="Mangal"/>';
	o[o.length] =     '<a:font script="Telu" typeface="Gautami"/>';
	o[o.length] =     '<a:font script="Taml" typeface="Latha"/>';
	o[o.length] =     '<a:font script="Syrc" typeface="Estrangelo Edessa"/>';
	o[o.length] =     '<a:font script="Orya" typeface="Kalinga"/>';
	o[o.length] =     '<a:font script="Mlym" typeface="Kartika"/>';
	o[o.length] =     '<a:font script="Laoo" typeface="DokChampa"/>';
	o[o.length] =     '<a:font script="Sinh" typeface="Iskoola Pota"/>';
	o[o.length] =     '<a:font script="Mong" typeface="Mongolian Baiti"/>';
	o[o.length] =     '<a:font script="Viet" typeface="Times New Roman"/>';
	o[o.length] =     '<a:font script="Uigh" typeface="Microsoft Uighur"/>';
	o[o.length] =     '<a:font script="Geor" typeface="Sylfaen"/>';
	o[o.length] =    '</a:majorFont>';
	o[o.length] =    '<a:minorFont>';
	o[o.length] =     '<a:latin typeface="Calibri"/>';
	o[o.length] =     '<a:ea typeface=""/>';
	o[o.length] =     '<a:cs typeface=""/>';
	o[o.length] =     '<a:font script="Jpan" typeface="ＭＳ Ｐゴシック"/>';
	o[o.length] =     '<a:font script="Hang" typeface="맑은 고딕"/>';
	o[o.length] =     '<a:font script="Hans" typeface="宋体"/>';
	o[o.length] =     '<a:font script="Hant" typeface="新細明體"/>';
	o[o.length] =     '<a:font script="Arab" typeface="Arial"/>';
	o[o.length] =     '<a:font script="Hebr" typeface="Arial"/>';
	o[o.length] =     '<a:font script="Thai" typeface="Tahoma"/>';
	o[o.length] =     '<a:font script="Ethi" typeface="Nyala"/>';
	o[o.length] =     '<a:font script="Beng" typeface="Vrinda"/>';
	o[o.length] =     '<a:font script="Gujr" typeface="Shruti"/>';
	o[o.length] =     '<a:font script="Khmr" typeface="DaunPenh"/>';
	o[o.length] =     '<a:font script="Knda" typeface="Tunga"/>';
	o[o.length] =     '<a:font script="Guru" typeface="Raavi"/>';
	o[o.length] =     '<a:font script="Cans" typeface="Euphemia"/>';
	o[o.length] =     '<a:font script="Cher" typeface="Plantagenet Cherokee"/>';
	o[o.length] =     '<a:font script="Yiii" typeface="Microsoft Yi Baiti"/>';
	o[o.length] =     '<a:font script="Tibt" typeface="Microsoft Himalaya"/>';
	o[o.length] =     '<a:font script="Thaa" typeface="MV Boli"/>';
	o[o.length] =     '<a:font script="Deva" typeface="Mangal"/>';
	o[o.length] =     '<a:font script="Telu" typeface="Gautami"/>';
	o[o.length] =     '<a:font script="Taml" typeface="Latha"/>';
	o[o.length] =     '<a:font script="Syrc" typeface="Estrangelo Edessa"/>';
	o[o.length] =     '<a:font script="Orya" typeface="Kalinga"/>';
	o[o.length] =     '<a:font script="Mlym" typeface="Kartika"/>';
	o[o.length] =     '<a:font script="Laoo" typeface="DokChampa"/>';
	o[o.length] =     '<a:font script="Sinh" typeface="Iskoola Pota"/>';
	o[o.length] =     '<a:font script="Mong" typeface="Mongolian Baiti"/>';
	o[o.length] =     '<a:font script="Viet" typeface="Arial"/>';
	o[o.length] =     '<a:font script="Uigh" typeface="Microsoft Uighur"/>';
	o[o.length] =     '<a:font script="Geor" typeface="Sylfaen"/>';
	o[o.length] =    '</a:minorFont>';
	o[o.length] =   '</a:fontScheme>';

	o[o.length] =   '<a:fmtScheme name="Office">';
	o[o.length] =    '<a:fillStyleLst>';
	o[o.length] =     '<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>';
	o[o.length] =     '<a:gradFill rotWithShape="1">';
	o[o.length] =      '<a:gsLst>';
	o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="50000"/><a:satMod val="300000"/></a:schemeClr></a:gs>';
	o[o.length] =       '<a:gs pos="35000"><a:schemeClr val="phClr"><a:tint val="37000"/><a:satMod val="300000"/></a:schemeClr></a:gs>';
	o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:tint val="15000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
	o[o.length] =      '</a:gsLst>';
	o[o.length] =      '<a:lin ang="16200000" scaled="1"/>';
	o[o.length] =     '</a:gradFill>';
	o[o.length] =     '<a:gradFill rotWithShape="1">';
	o[o.length] =      '<a:gsLst>';
	o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="100000"/><a:shade val="100000"/><a:satMod val="130000"/></a:schemeClr></a:gs>';
	o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:tint val="50000"/><a:shade val="100000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
	o[o.length] =      '</a:gsLst>';
	o[o.length] =      '<a:lin ang="16200000" scaled="0"/>';
	o[o.length] =     '</a:gradFill>';
	o[o.length] =    '</a:fillStyleLst>';
	o[o.length] =    '<a:lnStyleLst>';
	o[o.length] =     '<a:ln w="9525" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"><a:shade val="95000"/><a:satMod val="105000"/></a:schemeClr></a:solidFill><a:prstDash val="solid"/></a:ln>';
	o[o.length] =     '<a:ln w="25400" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln>';
	o[o.length] =     '<a:ln w="38100" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln>';
	o[o.length] =    '</a:lnStyleLst>';
	o[o.length] =    '<a:effectStyleLst>';
	o[o.length] =     '<a:effectStyle>';
	o[o.length] =      '<a:effectLst>';
	o[o.length] =       '<a:outerShdw blurRad="40000" dist="20000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="38000"/></a:srgbClr></a:outerShdw>';
	o[o.length] =      '</a:effectLst>';
	o[o.length] =     '</a:effectStyle>';
	o[o.length] =     '<a:effectStyle>';
	o[o.length] =      '<a:effectLst>';
	o[o.length] =       '<a:outerShdw blurRad="40000" dist="23000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="35000"/></a:srgbClr></a:outerShdw>';
	o[o.length] =      '</a:effectLst>';
	o[o.length] =     '</a:effectStyle>';
	o[o.length] =     '<a:effectStyle>';
	o[o.length] =      '<a:effectLst>';
	o[o.length] =       '<a:outerShdw blurRad="40000" dist="23000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="35000"/></a:srgbClr></a:outerShdw>';
	o[o.length] =      '</a:effectLst>';
	o[o.length] =      '<a:scene3d><a:camera prst="orthographicFront"><a:rot lat="0" lon="0" rev="0"/></a:camera><a:lightRig rig="threePt" dir="t"><a:rot lat="0" lon="0" rev="1200000"/></a:lightRig></a:scene3d>';
	o[o.length] =      '<a:sp3d><a:bevelT w="63500" h="25400"/></a:sp3d>';
	o[o.length] =     '</a:effectStyle>';
	o[o.length] =    '</a:effectStyleLst>';
	o[o.length] =    '<a:bgFillStyleLst>';
	o[o.length] =     '<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>';
	o[o.length] =     '<a:gradFill rotWithShape="1">';
	o[o.length] =      '<a:gsLst>';
	o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="40000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
	o[o.length] =       '<a:gs pos="40000"><a:schemeClr val="phClr"><a:tint val="45000"/><a:shade val="99000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
	o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:shade val="20000"/><a:satMod val="255000"/></a:schemeClr></a:gs>';
	o[o.length] =      '</a:gsLst>';
	o[o.length] =      '<a:path path="circle"><a:fillToRect l="50000" t="-80000" r="50000" b="180000"/></a:path>';
	o[o.length] =     '</a:gradFill>';
	o[o.length] =     '<a:gradFill rotWithShape="1">';
	o[o.length] =      '<a:gsLst>';
	o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="80000"/><a:satMod val="300000"/></a:schemeClr></a:gs>';
	o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:shade val="30000"/><a:satMod val="200000"/></a:schemeClr></a:gs>';
	o[o.length] =      '</a:gsLst>';
	o[o.length] =      '<a:path path="circle"><a:fillToRect l="50000" t="50000" r="50000" b="50000"/></a:path>';
	o[o.length] =     '</a:gradFill>';
	o[o.length] =    '</a:bgFillStyleLst>';
	o[o.length] =   '</a:fmtScheme>';
	o[o.length] =  '</a:themeElements>';

	o[o.length] =  '<a:objectDefaults>';
	o[o.length] =   '<a:spDef>';
	o[o.length] =    '<a:spPr/><a:bodyPr/><a:lstStyle/><a:style><a:lnRef idx="1"><a:schemeClr val="accent1"/></a:lnRef><a:fillRef idx="3"><a:schemeClr val="accent1"/></a:fillRef><a:effectRef idx="2"><a:schemeClr val="accent1"/></a:effectRef><a:fontRef idx="minor"><a:schemeClr val="lt1"/></a:fontRef></a:style>';
	o[o.length] =   '</a:spDef>';
	o[o.length] =   '<a:lnDef>';
	o[o.length] =    '<a:spPr/><a:bodyPr/><a:lstStyle/><a:style><a:lnRef idx="2"><a:schemeClr val="accent1"/></a:lnRef><a:fillRef idx="0"><a:schemeClr val="accent1"/></a:fillRef><a:effectRef idx="1"><a:schemeClr val="accent1"/></a:effectRef><a:fontRef idx="minor"><a:schemeClr val="tx1"/></a:fontRef></a:style>';
	o[o.length] =   '</a:lnDef>';
	o[o.length] =  '</a:objectDefaults>';
	o[o.length] =  '<a:extraClrSchemeLst/>';
	o[o.length] = '</a:theme>';
	return o.join("");
}
function parse_xlmeta_xml(data, name, opts) {
  var out = { Types: [], Cell: [], Value: [] };
  if (!data)
    return out;
  var pass = false;
  var metatype = 2;
  data.replace(tagregex, function(x) {
    var y = parsexmltag(x);
    switch (strip_ns(y[0])) {
      case "<?xml":
        break;
      case "<metadata":
      case "</metadata>":
        break;
      case "<metadataTypes":
      case "</metadataTypes>":
        break;
      case "<metadataType":
        out.Types.push({ name: y.name });
        break;
      case "</metadataType>":
        break;
      case "<futureMetadata":
        break;
      case "</futureMetadata>":
        break;
      case "<bk>":
        break;
      case "</bk>":
        break;
      case "<rc":
        if (metatype == 1)
          out.Cell.push({ type: out.Types[y.t - 1].name, index: +y.v });
        else if (metatype == 0)
          out.Value.push({ type: out.Types[y.t - 1].name, index: +y.v });
        break;
      case "</rc>":
        break;
      case "<cellMetadata":
        metatype = 1;
        break;
      case "</cellMetadata>":
        metatype = 2;
        break;
      case "<valueMetadata":
        metatype = 0;
        break;
      case "</valueMetadata>":
        metatype = 2;
        break;
      case "<extLst":
      case "<extLst>":
      case "</extLst>":
      case "<extLst/>":
        break;
      case "<ext":
        pass = true;
        break;
      case "</ext>":
        pass = false;
        break;
      default:
        if (!pass && opts.WTF)
          throw new Error("unrecognized " + y[0] + " in metadata");
    }
    return x;
  });
  return out;
}
function write_xlmeta_xml() {
  var o = [XML_HEADER];
  o.push('<metadata xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:xlrd="http://schemas.microsoft.com/office/spreadsheetml/2017/richdata" xmlns:xda="http://schemas.microsoft.com/office/spreadsheetml/2017/dynamicarray">\n  <metadataTypes count="1">\n    <metadataType name="XLDAPR" minSupportedVersion="120000" copy="1" pasteAll="1" pasteValues="1" merge="1" splitFirst="1" rowColShift="1" clearFormats="1" clearComments="1" assign="1" coerce="1" cellMeta="1"/>\n  </metadataTypes>\n  <futureMetadata name="XLDAPR" count="1">\n    <bk>\n      <extLst>\n        <ext uri="{bdbb8cdc-fa1e-496e-a857-3c3f30c029c3}">\n          <xda:dynamicArrayProperties fDynamic="1" fCollapsed="0"/>\n        </ext>\n      </extLst>\n    </bk>\n  </futureMetadata>\n  <cellMetadata count="1">\n    <bk>\n      <rc t="1" v="0"/>\n    </bk>\n  </cellMetadata>\n</metadata>');
  return o.join("");
}
/* 18.14 Supplementary Workbook Data */
function parse_xlink_xml() {
	//var opts = _opts || {};
	//if(opts.WTF) throw "XLSX External Link";
}

/* [MS-XLSB] 2.1.7.25 External Link */
function parse_xlink_bin(data, rel, name, _opts) {
	if(!data) return data;
	var opts = _opts || {};

	var pass = false, end = false;

	recordhopper(data, function xlink_parse(val, R, RT) {
		if(end) return;
		switch(RT) {
			case 0x0167: /* 'BrtSupTabs' */
			case 0x016B: /* 'BrtExternTableStart' */
			case 0x016C: /* 'BrtExternTableEnd' */
			case 0x016E: /* 'BrtExternRowHdr' */
			case 0x016F: /* 'BrtExternCellBlank' */
			case 0x0170: /* 'BrtExternCellReal' */
			case 0x0171: /* 'BrtExternCellBool' */
			case 0x0172: /* 'BrtExternCellError' */
			case 0x0173: /* 'BrtExternCellString' */
			case 0x01D8: /* 'BrtExternValueMeta' */
			case 0x0241: /* 'BrtSupNameStart' */
			case 0x0242: /* 'BrtSupNameValueStart' */
			case 0x0243: /* 'BrtSupNameValueEnd' */
			case 0x0244: /* 'BrtSupNameNum' */
			case 0x0245: /* 'BrtSupNameErr' */
			case 0x0246: /* 'BrtSupNameSt' */
			case 0x0247: /* 'BrtSupNameNil' */
			case 0x0248: /* 'BrtSupNameBool' */
			case 0x0249: /* 'BrtSupNameFmla' */
			case 0x024A: /* 'BrtSupNameBits' */
			case 0x024B: /* 'BrtSupNameEnd' */
				break;

			case 0x0023: /* 'BrtFRTBegin' */
				pass = true; break;
			case 0x0024: /* 'BrtFRTEnd' */
				pass = false; break;

			default:
				if(R.T){/* empty */}
				else if(!pass || opts.WTF) throw new Error("Unexpected record 0x" + RT.toString(16));
		}
	}, opts);
}
/* 20.5 DrawingML - SpreadsheetML Drawing */
/* 20.5.2.35 wsDr CT_Drawing */
function parse_drawing(data, rels) {
	if(!data) return "??";
	/*
	  Chartsheet Drawing:
	   - 20.5.2.35 wsDr CT_Drawing
	    - 20.5.2.1  absoluteAnchor CT_AbsoluteAnchor
	     - 20.5.2.16 graphicFrame CT_GraphicalObjectFrame
	      - 20.1.2.2.16 graphic CT_GraphicalObject
	       - 20.1.2.2.17 graphicData CT_GraphicalObjectData
          - chart reference
	   the actual type is based on the URI of the graphicData
		TODO: handle embedded charts and other types of graphics
	*/
	var id = (data.match(/<c:chart [^>]*r:id="([^"]*)"/)||["",""])[1];

	return rels['!id'][id].Target;
}

/* L.5.5.2 SpreadsheetML Comments + VML Schema */
var _shapeid = 1024;
function write_comments_vml(rId, comments) {
	var csize = [21600, 21600];
	/* L.5.2.1.2 Path Attribute */
	var bbox = ["m0,0l0",csize[1],csize[0],csize[1],csize[0],"0xe"].join(",");
	var o = [
		writextag("xml", null, { 'xmlns:v': XLMLNS.v, 'xmlns:o': XLMLNS.o, 'xmlns:x': XLMLNS.x, 'xmlns:mv': XLMLNS.mv }).replace(/\/>/,">"),
		writextag("o:shapelayout", writextag("o:idmap", null, {'v:ext':"edit", 'data':rId}), {'v:ext':"edit"}),
		writextag("v:shapetype", [
			writextag("v:stroke", null, {joinstyle:"miter"}),
			writextag("v:path", null, {gradientshapeok:"t", 'o:connecttype':"rect"})
		].join(""), {id:"_x0000_t202", 'o:spt':202, coordsize:csize.join(","),path:bbox})
	];
	while(_shapeid < rId * 1000) _shapeid += 1000;

	comments.forEach(function(x) {
	var c = decode_cell(x[0]);
	var fillopts = {'color2':"#BEFF82", 'type':"gradient"};
	if(fillopts.type == "gradient") fillopts.angle = "-180";
	var fillparm = fillopts.type == "gradient" ? writextag("o:fill", null, {type:"gradientUnscaled", 'v:ext':"view"}) : null;
	var fillxml = writextag('v:fill', fillparm, fillopts);

	var shadata = ({on:"t", 'obscured':"t"});
	++_shapeid;

	o = o.concat([
	'<v:shape' + wxt_helper({
		id:'_x0000_s' + _shapeid,
		type:"#_x0000_t202",
		style:"position:absolute; margin-left:80pt;margin-top:5pt;width:104pt;height:64pt;z-index:10" + (x[1].hidden ? ";visibility:hidden" : "") ,
		fillcolor:"#ECFAD4",
		strokecolor:"#edeaa1"
	}) + '>',
		fillxml,
		writextag("v:shadow", null, shadata),
		writextag("v:path", null, {'o:connecttype':"none"}),
		'<v:textbox><div style="text-align:left"></div></v:textbox>',
		'<x:ClientData ObjectType="Note">',
			'<x:MoveWithCells/>',
			'<x:SizeWithCells/>',
			/* Part 4 19.4.2.3 Anchor (Anchor) */
			writetag('x:Anchor', [c.c+1, 0, c.r+1, 0, c.c+3, 20, c.r+5, 20].join(",")),
			writetag('x:AutoFill', "False"),
			writetag('x:Row', String(c.r)),
			writetag('x:Column', String(c.c)),
			x[1].hidden ? '' : '<x:Visible/>',
		'</x:ClientData>',
	'</v:shape>'
	]); });
	o.push('</xml>');
	return o.join("");
}
function sheet_insert_comments(sheet, comments, threaded, people) {
	var dense = Array.isArray(sheet);
	var cell;
	comments.forEach(function(comment) {
		var r = decode_cell(comment.ref);
		if(dense) {
			if(!sheet[r.r]) sheet[r.r] = [];
			cell = sheet[r.r][r.c];
		} else cell = sheet[comment.ref];
		if (!cell) {
			cell = ({t:"z"});
			if(dense) sheet[r.r][r.c] = cell;
			else sheet[comment.ref] = cell;
			var range = safe_decode_range(sheet["!ref"]||"BDWGO1000001:A1");
			if(range.s.r > r.r) range.s.r = r.r;
			if(range.e.r < r.r) range.e.r = r.r;
			if(range.s.c > r.c) range.s.c = r.c;
			if(range.e.c < r.c) range.e.c = r.c;
			var encoded = encode_range(range);
			if (encoded !== sheet["!ref"]) sheet["!ref"] = encoded;
		}

		if (!cell.c) cell.c = [];
		var o = ({a: comment.author, t: comment.t, r: comment.r, T: threaded});
		if(comment.h) o.h = comment.h;

		/* threaded comments always override */
		for(var i = cell.c.length - 1; i >= 0; --i) {
			if(!threaded && cell.c[i].T) return;
			if(threaded && !cell.c[i].T) cell.c.splice(i, 1);
		}
		if(threaded && people) for(i = 0; i < people.length; ++i) {
			if(o.a == people[i].id) { o.a = people[i].name || o.a; break; }
		}
		cell.c.push(o);
	});
}

/* 18.7 Comments */
function parse_comments_xml(data, opts) {
	/* 18.7.6 CT_Comments */
	if(data.match(/<(?:\w+:)?comments *\/>/)) return [];
	var authors = [];
	var commentList = [];
	var authtag = data.match(/<(?:\w+:)?authors>([\s\S]*)<\/(?:\w+:)?authors>/);
	if(authtag && authtag[1]) authtag[1].split(/<\/\w*:?author>/).forEach(function(x) {
		if(x === "" || x.trim() === "") return;
		var a = x.match(/<(?:\w+:)?author[^>]*>(.*)/);
		if(a) authors.push(a[1]);
	});
	var cmnttag = data.match(/<(?:\w+:)?commentList>([\s\S]*)<\/(?:\w+:)?commentList>/);
	if(cmnttag && cmnttag[1]) cmnttag[1].split(/<\/\w*:?comment>/).forEach(function(x) {
		if(x === "" || x.trim() === "") return;
		var cm = x.match(/<(?:\w+:)?comment[^>]*>/);
		if(!cm) return;
		var y = parsexmltag(cm[0]);
		var comment = ({ author: y.authorId && authors[y.authorId] || "sheetjsghost", ref: y.ref, guid: y.guid });
		var cell = decode_cell(y.ref);
		if(opts.sheetRows && opts.sheetRows <= cell.r) return;
		var textMatch = x.match(/<(?:\w+:)?text>([\s\S]*)<\/(?:\w+:)?text>/);
		var rt = !!textMatch && !!textMatch[1] && parse_si(textMatch[1]) || {r:"",t:"",h:""};
		comment.r = rt.r;
		if(rt.r == "<t></t>") rt.t = rt.h = "";
		comment.t = (rt.t||"").replace(/\r\n/g,"\n").replace(/\r/g,"\n");
		if(opts.cellHTML) comment.h = rt.h;
		commentList.push(comment);
	});
	return commentList;
}

function write_comments_xml(data) {
	var o = [XML_HEADER, writextag('comments', null, { 'xmlns': XMLNS_main[0] })];

	var iauthor = [];
	o.push("<authors>");
	data.forEach(function(x) { x[1].forEach(function(w) { var a = escapexml(w.a);
		if(iauthor.indexOf(a) == -1) {
			iauthor.push(a);
			o.push("<author>" + a + "</author>");
		}
		if(w.T && w.ID && iauthor.indexOf("tc=" + w.ID) == -1) {
			iauthor.push("tc=" + w.ID);
			o.push("<author>" + "tc=" + w.ID + "</author>");
		}
	}); });
	if(iauthor.length == 0) { iauthor.push("SheetJ5"); o.push("<author>SheetJ5</author>"); }
	o.push("</authors>");
	o.push("<commentList>");
	data.forEach(function(d) {
		/* 18.7.3 CT_Comment */
		var lastauthor = 0, ts = [];
		if(d[1][0] && d[1][0].T && d[1][0].ID) lastauthor = iauthor.indexOf("tc=" + d[1][0].ID);
		else d[1].forEach(function(c) {
			if(c.a) lastauthor = iauthor.indexOf(escapexml(c.a));
			ts.push(c.t||"");
		});
		o.push('<comment ref="' + d[0] + '" authorId="' + lastauthor + '"><text>');
		if(ts.length <= 1) o.push(writetag("t", escapexml(ts[0]||"")));
		else {
			/* based on Threaded Comments -> Comments projection */
			var t = "Comment:\n    " + (ts[0]) + "\n";
			for(var i = 1; i < ts.length; ++i) t += "Reply:\n    " + ts[i] + "\n";
			o.push(writetag("t", escapexml(t)));
		}
		o.push('</text></comment>');
	});
	o.push("</commentList>");
	if(o.length>2) { o[o.length] = ('</comments>'); o[1]=o[1].replace("/>",">"); }
	return o.join("");
}

/* [MS-XLSX] 2.1.17 */
function parse_tcmnt_xml(data, opts) {
	var out = [];
	var pass = false, comment = {}, tidx = 0;
	data.replace(tagregex, function xml_tcmnt(x, idx) {
		var y = parsexmltag(x);
		switch(strip_ns(y[0])) {
			case '<?xml': break;

			/* 2.6.207 ThreadedComments CT_ThreadedComments */
			case '<ThreadedComments': break;
			case '</ThreadedComments>': break;

			/* 2.6.205 threadedComment CT_ThreadedComment */
			case '<threadedComment': comment = {author: y.personId, guid: y.id, ref: y.ref, T: 1}; break;
			case '</threadedComment>': if(comment.t != null) out.push(comment); break;

			case '<text>': case '<text': tidx = idx + x.length; break;
			case '</text>': comment.t = data.slice(tidx, idx).replace(/\r\n/g, "\n").replace(/\r/g, "\n"); break;

			/* 2.6.206 mentions CT_ThreadedCommentMentions TODO */
			case '<mentions': case '<mentions>': pass = true; break;
			case '</mentions>': pass = false; break;

			/* 2.6.202 mention CT_Mention TODO */

			/* 18.2.10 extLst CT_ExtensionList ? */
			case '<extLst': case '<extLst>': case '</extLst>': case '<extLst/>': break;
			/* 18.2.7  ext CT_Extension + */
			case '<ext': pass=true; break;
			case '</ext>': pass=false; break;

			default: if(!pass && opts.WTF) throw new Error('unrecognized ' + y[0] + ' in threaded comments');
		}
		return x;
	});
	return out;
}

function write_tcmnt_xml(comments, people, opts) {
	var o = [XML_HEADER, writextag('ThreadedComments', null, { 'xmlns': XMLNS.TCMNT }).replace(/[\/]>/, ">")];
	comments.forEach(function(carr) {
		var rootid = "";
		(carr[1] || []).forEach(function(c, idx) {
			if(!c.T) { delete c.ID; return; }
			if(c.a && people.indexOf(c.a) == -1) people.push(c.a);
			var tcopts = {
				ref: carr[0],
				id: "{54EE7951-7262-4200-6969-" + ("000000000000" + opts.tcid++).slice(-12) + "}"
			};
			if(idx == 0) rootid = tcopts.id;
			else tcopts.parentId = rootid;
			c.ID = tcopts.id;
			if(c.a) tcopts.personId = "{54EE7950-7262-4200-6969-" + ("000000000000" + people.indexOf(c.a)).slice(-12) + "}";
			o.push(writextag('threadedComment', writetag('text', c.t||""), tcopts));
		});
	});
	o.push('</ThreadedComments>');
	return o.join("");
}

/* [MS-XLSX] 2.1.18 */
function parse_people_xml(data, opts) {
	var out = [];
	var pass = false;
	data.replace(tagregex, function xml_tcmnt(x) {
		var y = parsexmltag(x);
		switch(strip_ns(y[0])) {
			case '<?xml': break;

			/* 2.4.85 personList CT_PersonList */
			case '<personList': break;
			case '</personList>': break;

			/* 2.6.203 person CT_Person TODO: providers */
			case '<person': out.push({name: y.displayname, id: y.id }); break;
			case '</person>': break;

			/* 18.2.10 extLst CT_ExtensionList ? */
			case '<extLst': case '<extLst>': case '</extLst>': case '<extLst/>': break;
			/* 18.2.7  ext CT_Extension + */
			case '<ext': pass=true; break;
			case '</ext>': pass=false; break;

			default: if(!pass && opts.WTF) throw new Error('unrecognized ' + y[0] + ' in threaded comments');
		}
		return x;
	});
	return out;
}
function write_people_xml(people/*, opts*/) {
	var o = [XML_HEADER, writextag('personList', null, {
		'xmlns': XMLNS.TCMNT,
		'xmlns:x': XMLNS_main[0]
	}).replace(/[\/]>/, ">")];
	people.forEach(function(person, idx) {
		o.push(writextag('person', null, {
			displayName: person,
			id: "{54EE7950-7262-4200-6969-" + ("000000000000" + idx).slice(-12) + "}",
			userId: person,
			providerId: "None"
		}));
	});
	o.push("</personList>");
	return o.join("");
}
var CT_VBA = "application/vnd.ms-office.vbaProject";
function make_vba_xls(cfb) {
  var newcfb = CFB.utils.cfb_new({ root: "R" });
  cfb.FullPaths.forEach(function(p, i) {
    if (p.slice(-1) === "/" || !p.match(/_VBA_PROJECT_CUR/))
      return;
    var newpath = p.replace(/^[^\/]*/, "R").replace(/\/_VBA_PROJECT_CUR\u0000*/, "");
    CFB.utils.cfb_add(newcfb, newpath, cfb.FileIndex[i].content);
  });
  return CFB.write(newcfb);
}
function fill_vba_xls(cfb, vba) {
  vba.FullPaths.forEach(function(p, i) {
    if (i == 0)
      return;
    var newpath = p.replace(/[^\/]*[\/]/, "/_VBA_PROJECT_CUR/");
    if (newpath.slice(-1) !== "/")
      CFB.utils.cfb_add(cfb, newpath, vba.FileIndex[i].content);
  });
}
var VBAFMTS = ["xlsb", "xlsm", "xlam", "biff8", "xla"];
/* macro and dialog sheet stubs */
function parse_ds_bin() { return {'!type':'dialog'}; }
function parse_ds_xml() { return {'!type':'dialog'}; }
function parse_ms_bin() { return {'!type':'macro'}; }
function parse_ms_xml() { return {'!type':'macro'}; }
/* TODO: it will be useful to parse the function str */
var rc_to_a1 = (function(){
	var rcregex = /(^|[^A-Za-z_])R(\[?-?\d+\]|[1-9]\d*|)C(\[?-?\d+\]|[1-9]\d*|)(?![A-Za-z0-9_])/g;
	var rcbase = ({r:0,c:0});
	function rcfunc($$,$1,$2,$3) {
		var cRel = false, rRel = false;

		if($2.length == 0) rRel = true;
		else if($2.charAt(0) == "[") { rRel = true; $2 = $2.slice(1, -1); }

		if($3.length == 0) cRel = true;
		else if($3.charAt(0) == "[") { cRel = true; $3 = $3.slice(1, -1); }

		var R = $2.length>0?parseInt($2,10)|0:0, C = $3.length>0?parseInt($3,10)|0:0;

		if(cRel) C += rcbase.c; else --C;
		if(rRel) R += rcbase.r; else --R;
		return $1 + (cRel ? "" : "$") + encode_col(C) + (rRel ? "" : "$") + encode_row(R);
	}
	return function rc_to_a1(fstr, base) {
		rcbase = base;
		return fstr.replace(rcregex, rcfunc);
	};
})();

var crefregex = /(^|[^._A-Z0-9])([$]?)([A-Z]{1,2}|[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D])([$]?)(10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6]|[1-9]\d{0,5})(?![_.\(A-Za-z0-9])/g;
var a1_to_rc = (function(){
	return function a1_to_rc(fstr, base) {
		return fstr.replace(crefregex, function($0, $1, $2, $3, $4, $5) {
			var c = decode_col($3) - ($2 ? 0 : base.c);
			var r = decode_row($5) - ($4 ? 0 : base.r);
			var R = (r == 0 ? "" : !$4 ? "[" + r + "]" : (r+1));
			var C = (c == 0 ? "" : !$2 ? "[" + c + "]" : (c+1));
			return $1 + "R" + R + "C" + C;
		});
	};
})();

/* no defined name can collide with a valid cell address A1:XFD1048576 ... except LOG10! */
function shift_formula_str(f, delta) {
	return f.replace(crefregex, function($0, $1, $2, $3, $4, $5) {
		return $1+($2=="$" ? $2+$3 : encode_col(decode_col($3)+delta.c))+($4=="$" ? $4+$5 : encode_row(decode_row($5) + delta.r));
	});
}

function shift_formula_xlsx(f, range, cell) {
	var r = decode_range(range), s = r.s, c = decode_cell(cell);
	var delta = {r:c.r - s.r, c:c.c - s.c};
	return shift_formula_str(f, delta);
}

/* TODO: parse formula */
function fuzzyfmla(f) {
	if(f.length == 1) return false;
	return true;
}

function _xlfn(f) {
	return f.replace(/_xlfn\./g,"");
}
/* Part 3 TODO: actually parse formulae */
function ods_to_csf_formula(f) {
	if(f.slice(0,3) == "of:") f = f.slice(3);
	/* 5.2 Basic Expressions */
	if(f.charCodeAt(0) == 61) {
		f = f.slice(1);
		if(f.charCodeAt(0) == 61) f = f.slice(1);
	}
	f = f.replace(/COM\.MICROSOFT\./g, "");
	/* Part 3 Section 5.8 References */
	f = f.replace(/\[((?:\.[A-Z]+[0-9]+)(?::\.[A-Z]+[0-9]+)?)\]/g, function($$, $1) { return $1.replace(/\./g,""); });
	/* TODO: something other than this */
	f = f.replace(/\[.(#[A-Z]*[?!])\]/g, "$1");
	return f.replace(/[;~]/g,",").replace(/\|/g,";");
}

function csf_to_ods_formula(f) {
	var o = "of:=" + f.replace(crefregex, "$1[.$2$3$4$5]").replace(/\]:\[/g,":");
	/* TODO: something other than this */
	return o.replace(/;/g, "|").replace(/,/g,";");
}

function ods_to_csf_3D(r) {
	var a = r.split(":");
	var s = a[0].split(".")[0];
	return [s, a[0].split(".")[1] + (a.length > 1 ? (":" + (a[1].split(".")[1] || a[1].split(".")[0])) : "")];
}

function csf_to_ods_3D(r) {
	return r.replace(/\./,"!");
}

var strs = {}; // shared strings
var _ssfopts = {}; // spreadsheet formatting options


/*global Map */
var browser_has_Map = typeof Map !== 'undefined';

function get_sst_id(sst, str, rev) {
	var i = 0, len = sst.length;
	if(rev) {
		if(browser_has_Map ? rev.has(str) : Object.prototype.hasOwnProperty.call(rev, str)) {
			var revarr = browser_has_Map ? rev.get(str) : rev[str];
			for(; i < revarr.length; ++i) {
				if(sst[revarr[i]].t === str) { sst.Count ++; return revarr[i]; }
			}
		}
	} else for(; i < len; ++i) {
		if(sst[i].t === str) { sst.Count ++; return i; }
	}
	sst[len] = ({t:str}); sst.Count ++; sst.Unique ++;
	if(rev) {
		if(browser_has_Map) {
			if(!rev.has(str)) rev.set(str, []);
			rev.get(str).push(len);
		} else {
			if(!Object.prototype.hasOwnProperty.call(rev, str)) rev[str] = [];
			rev[str].push(len);
		}
	}
	return len;
}

function col_obj_w(C, col) {
	var p = ({min:C+1,max:C+1});
	/* wch (chars), wpx (pixels) */
	var wch = -1;
	if(col.MDW) MDW = col.MDW;
	if(col.width != null) p.customWidth = 1;
	else if(col.wpx != null) wch = px2char(col.wpx);
	else if(col.wch != null) wch = col.wch;
	if(wch > -1) { p.width = char2width(wch); p.customWidth = 1; }
	else if(col.width != null) p.width = col.width;
	if(col.hidden) p.hidden = true;
	if(col.level != null) { p.outlineLevel = p.level = col.level; }
	return p;
}

function default_margins(margins, mode) {
	if(!margins) return;
	var defs = [0.7, 0.7, 0.75, 0.75, 0.3, 0.3];
	if(mode == 'xlml') defs = [1, 1, 1, 1, 0.5, 0.5];
	if(margins.left   == null) margins.left   = defs[0];
	if(margins.right  == null) margins.right  = defs[1];
	if(margins.top    == null) margins.top    = defs[2];
	if(margins.bottom == null) margins.bottom = defs[3];
	if(margins.header == null) margins.header = defs[4];
	if(margins.footer == null) margins.footer = defs[5];
}

function get_cell_style(styles, cell, opts) {
	var z = opts.revssf[cell.z != null ? cell.z : "General"];
	var i = 0x3c, len = styles.length;
	if(z == null && opts.ssf) {
		for(; i < 0x188; ++i) if(opts.ssf[i] == null) {
			SSF.load(cell.z, i);
			// $FlowIgnore
			opts.ssf[i] = cell.z;
			opts.revssf[cell.z] = z = i;
			break;
		}
	}
	for(i = 0; i != len; ++i) if(styles[i].numFmtId === z) return i;
	styles[len] = {
		numFmtId:z,
		fontId:0,
		fillId:0,
		borderId:0,
		xfId:0,
		applyNumberFormat:1
	};
	return len;
}

function safe_format(p, fmtid, fillid, opts, themes, styles) {
	try {
		if(opts.cellNF) p.z = SSF._table[fmtid];
	} catch(e) { if(opts.WTF) throw e; }
	if(p.t === 'z' && !opts.cellStyles) return;
	if(p.t === 'd' && typeof p.v === 'string') p.v = parseDate(p.v);
	if((!opts || opts.cellText !== false) && p.t !== 'z') try {
		if(SSF._table[fmtid] == null) SSF.load(SSFImplicit[fmtid] || "General", fmtid);
		if(p.t === 'e') p.w = p.w || BErr[p.v];
		else if(fmtid === 0) {
			if(p.t === 'n') {
				if((p.v|0) === p.v) p.w = SSF._general_int(p.v);
				else p.w = SSF._general_num(p.v);
			}
			else if(p.t === 'd') {
				var dd = datenum(p.v);
				if((dd|0) === dd) p.w = SSF._general_int(dd);
				else p.w = SSF._general_num(dd);
			}
			else if(p.v === undefined) return "";
			else p.w = SSF._general(p.v,_ssfopts);
		}
		else if(p.t === 'd') p.w = SSF.format(fmtid,datenum(p.v),_ssfopts);
		else p.w = SSF.format(fmtid,p.v,_ssfopts);
	} catch(e) { if(opts.WTF) throw e; }
	if(!opts.cellStyles) return;
	if(fillid != null) try {
		p.s = styles.Fills[fillid];
		if (p.s.fgColor && p.s.fgColor.theme && !p.s.fgColor.rgb) {
			p.s.fgColor.rgb = rgb_tint(themes.themeElements.clrScheme[p.s.fgColor.theme].rgb, p.s.fgColor.tint || 0);
			if(opts.WTF) p.s.fgColor.raw_rgb = themes.themeElements.clrScheme[p.s.fgColor.theme].rgb;
		}
		if (p.s.bgColor && p.s.bgColor.theme) {
			p.s.bgColor.rgb = rgb_tint(themes.themeElements.clrScheme[p.s.bgColor.theme].rgb, p.s.bgColor.tint || 0);
			if(opts.WTF) p.s.bgColor.raw_rgb = themes.themeElements.clrScheme[p.s.bgColor.theme].rgb;
		}
	} catch(e) { if(opts.WTF && styles.Fills) throw e; }
}

function check_ws(ws, sname, i) {
	if(ws && ws['!ref']) {
		var range = safe_decode_range(ws['!ref']);
		if(range.e.c < range.s.c || range.e.r < range.s.r) throw new Error("Bad range (" + i + "): " + ws['!ref']);
	}
}
function parse_ws_xml_dim(ws, s) {
	var d = safe_decode_range(s);
	if(d.s.r<=d.e.r && d.s.c<=d.e.c && d.s.r>=0 && d.s.c>=0) ws["!ref"] = encode_range(d);
}
var mergecregex = /<(?:\w:)?mergeCell ref="[A-Z0-9:]+"\s*[\/]?>/g;
var sheetdataregex = /<(?:\w+:)?sheetData[^>]*>([\s\S]*)<\/(?:\w+:)?sheetData>/;
var hlinkregex = /<(?:\w:)?hyperlink [^>]*>/mg;
var dimregex = /"(\w*:\w*)"/;
var colregex = /<(?:\w:)?col\b[^>]*[\/]?>/g;
var afregex = /<(?:\w:)?autoFilter[^>]*([\/]|>([\s\S]*)<\/(?:\w:)?autoFilter)>/g;
var marginregex= /<(?:\w:)?pageMargins[^>]*\/>/g;
var sheetprregex = /<(?:\w:)?sheetPr\b(?:[^>a-z][^>]*)?\/>/;
var sheetprregex2= /<(?:\w:)?sheetPr[^>]*(?:[\/]|>([\s\S]*)<\/(?:\w:)?sheetPr)>/;
var svsregex = /<(?:\w:)?sheetViews[^>]*(?:[\/]|>([\s\S]*)<\/(?:\w:)?sheetViews)>/;

/* 18.3 Worksheets */
function parse_ws_xml(data, opts, idx, rels, wb, themes, styles) {
	if(!data) return data;
	if(!rels) rels = {'!id':{}};
	if(DENSE != null && opts.dense == null) opts.dense = DENSE;

	/* 18.3.1.99 worksheet CT_Worksheet */
	var s = opts.dense ? ([]) : ({});
	var refguess = ({s: {r:2000000, c:2000000}, e: {r:0, c:0} });

	var data1 = "", data2 = "";
	var mtch = data.match(sheetdataregex);
	if(mtch) {
		data1 = data.slice(0, mtch.index);
		data2 = data.slice(mtch.index + mtch[0].length);
	} else data1 = data2 = data;

	/* 18.3.1.82 sheetPr CT_SheetPr */
	var sheetPr = data1.match(sheetprregex);
	if(sheetPr) parse_ws_xml_sheetpr(sheetPr[0], s, wb, idx);
	else if((sheetPr = data1.match(sheetprregex2))) parse_ws_xml_sheetpr2(sheetPr[0], sheetPr[1]||"", s, wb, idx, styles, themes);

	/* 18.3.1.35 dimension CT_SheetDimension */
	var ridx = (data1.match(/<(?:\w*:)?dimension/)||{index:-1}).index;
	if(ridx > 0) {
		var ref = data1.slice(ridx,ridx+50).match(dimregex);
		if(ref) parse_ws_xml_dim(s, ref[1]);
	}

	/* 18.3.1.88 sheetViews CT_SheetViews */
	var svs = data1.match(svsregex);
	if(svs && svs[1]) parse_ws_xml_sheetviews(svs[1], wb);

	/* 18.3.1.17 cols CT_Cols */
	var columns = [];
	if(opts.cellStyles) {
		/* 18.3.1.13 col CT_Col */
		var cols = data1.match(colregex);
		if(cols) parse_ws_xml_cols(columns, cols);
	}

	/* 18.3.1.80 sheetData CT_SheetData ? */
	if(mtch) parse_ws_xml_data(mtch[1], s, opts, refguess, themes, styles);

	/* 18.3.1.2  autoFilter CT_AutoFilter */
	var afilter = data2.match(afregex);
	if(afilter) s['!autofilter'] = parse_ws_xml_autofilter(afilter[0]);

	/* 18.3.1.55 mergeCells CT_MergeCells */
	var merges = [];
	var _merge = data2.match(mergecregex);
	if(_merge) for(ridx = 0; ridx != _merge.length; ++ridx)
		merges[ridx] = safe_decode_range(_merge[ridx].slice(_merge[ridx].indexOf("\"")+1));

	/* 18.3.1.48 hyperlinks CT_Hyperlinks */
	var hlink = data2.match(hlinkregex);
	if(hlink) parse_ws_xml_hlinks(s, hlink, rels);

	/* 18.3.1.62 pageMargins CT_PageMargins */
	var margins = data2.match(marginregex);
	if(margins) s['!margins'] = parse_ws_xml_margins(parsexmltag(margins[0]));

	if(!s["!ref"] && refguess.e.c >= refguess.s.c && refguess.e.r >= refguess.s.r) s["!ref"] = encode_range(refguess);
	if(opts.sheetRows > 0 && s["!ref"]) {
		var tmpref = safe_decode_range(s["!ref"]);
		if(opts.sheetRows <= +tmpref.e.r) {
			tmpref.e.r = opts.sheetRows - 1;
			if(tmpref.e.r > refguess.e.r) tmpref.e.r = refguess.e.r;
			if(tmpref.e.r < tmpref.s.r) tmpref.s.r = tmpref.e.r;
			if(tmpref.e.c > refguess.e.c) tmpref.e.c = refguess.e.c;
			if(tmpref.e.c < tmpref.s.c) tmpref.s.c = tmpref.e.c;
			s["!fullref"] = s["!ref"];
			s["!ref"] = encode_range(tmpref);
		}
	}
	if(columns.length > 0) s["!cols"] = columns;
	if(merges.length > 0) s["!merges"] = merges;
	return s;
}

function write_ws_xml_merges(merges) {
	if(merges.length === 0) return "";
	var o = '<mergeCells count="' + merges.length + '">';
	for(var i = 0; i != merges.length; ++i) o += '<mergeCell ref="' + encode_range(merges[i]) + '"/>';
	return o + '</mergeCells>';
}

/* 18.3.1.82-3 sheetPr CT_ChartsheetPr / CT_SheetPr */
function parse_ws_xml_sheetpr(sheetPr, s, wb, idx) {
	var data = parsexmltag(sheetPr);
	if(!wb.Sheets[idx]) wb.Sheets[idx] = {};
	if(data.codeName) wb.Sheets[idx].CodeName = unescapexml(utf8read(data.codeName));
}
function parse_ws_xml_sheetpr2(sheetPr, body, s, wb, idx) {
	parse_ws_xml_sheetpr(sheetPr.slice(0, sheetPr.indexOf(">")), s, wb, idx);
}
function write_ws_xml_sheetpr(ws, wb, idx, opts, o) {
	var needed = false;
	var props = {}, payload = null;
	if(opts.bookType !== 'xlsx' && wb.vbaraw) {
		var cname = wb.SheetNames[idx];
		try { if(wb.Workbook) cname = wb.Workbook.Sheets[idx].CodeName || cname; } catch(e) {}
		needed = true;
		props.codeName = utf8write(escapexml(cname));
	}

	if(ws && ws["!outline"]) {
		var outlineprops = {summaryBelow:1, summaryRight:1};
		if(ws["!outline"].above) outlineprops.summaryBelow = 0;
		if(ws["!outline"].left) outlineprops.summaryRight = 0;
		payload = (payload||"") + writextag('outlinePr', null, outlineprops);
	}

	if(!needed && !payload) return;
	o[o.length] = (writextag('sheetPr', payload, props));
}

/* 18.3.1.85 sheetProtection CT_SheetProtection */
var sheetprot_deffalse = ["objects", "scenarios", "selectLockedCells", "selectUnlockedCells"];
var sheetprot_deftrue = [
	"formatColumns", "formatRows", "formatCells",
	"insertColumns", "insertRows", "insertHyperlinks",
	"deleteColumns", "deleteRows",
	"sort", "autoFilter", "pivotTables"
];
function write_ws_xml_protection(sp) {
	// algorithmName, hashValue, saltValue, spinCount
	var o = ({sheet:1});
	sheetprot_deffalse.forEach(function(n) { if(sp[n] != null && sp[n]) o[n] = "1"; });
	sheetprot_deftrue.forEach(function(n) { if(sp[n] != null && !sp[n]) o[n] = "0"; });
	/* TODO: algorithm */
	if(sp.password) o.password = crypto_CreatePasswordVerifier_Method1(sp.password).toString(16).toUpperCase();
	return writextag('sheetProtection', null, o);
}

function parse_ws_xml_hlinks(s, data, rels) {
	var dense = Array.isArray(s);
	for(var i = 0; i != data.length; ++i) {
		var val = parsexmltag(utf8read(data[i]), true);
		if(!val.ref) return;
		var rel = ((rels || {})['!id']||[])[val.id];
		if(rel) {
			val.Target = rel.Target;
			if(val.location) val.Target += "#"+unescapexml(val.location);
		} else {
			val.Target = "#" + unescapexml(val.location);
			rel = {Target: val.Target, TargetMode: 'Internal'};
		}
		val.Rel = rel;
		if(val.tooltip) { val.Tooltip = val.tooltip; delete val.tooltip; }
		var rng = safe_decode_range(val.ref);
		for(var R=rng.s.r;R<=rng.e.r;++R) for(var C=rng.s.c;C<=rng.e.c;++C) {
			var addr = encode_cell({c:C,r:R});
			if(dense) {
				if(!s[R]) s[R] = [];
				if(!s[R][C]) s[R][C] = {t:"z",v:undefined};
				s[R][C].l = val;
			} else {
				if(!s[addr]) s[addr] = {t:"z",v:undefined};
				s[addr].l = val;
			}
		}
	}
}

function parse_ws_xml_margins(margin) {
	var o = {};
	["left", "right", "top", "bottom", "header", "footer"].forEach(function(k) {
		if(margin[k]) o[k] = parseFloat(margin[k]);
	});
	return o;
}
function write_ws_xml_margins(margin) {
	default_margins(margin);
	return writextag('pageMargins', null, margin);
}

function parse_ws_xml_cols(columns, cols) {
	var seencol = false;
	for(var coli = 0; coli != cols.length; ++coli) {
		var coll = parsexmltag(cols[coli], true);
		if(coll.hidden) coll.hidden = parsexmlbool(coll.hidden);
		var colm=parseInt(coll.min, 10)-1, colM=parseInt(coll.max,10)-1;
		if(coll.outlineLevel) coll.level = (+coll.outlineLevel || 0);
		delete coll.min; delete coll.max; coll.width = +coll.width;
		if(!seencol && coll.width) { seencol = true; find_mdw_colw(coll.width); }
		process_col(coll);
		while(colm <= colM) columns[colm++] = dup(coll);
	}
}
function write_ws_xml_cols(ws, cols) {
	var o = ["<cols>"], col;
	for(var i = 0; i != cols.length; ++i) {
		if(!(col = cols[i])) continue;
		o[o.length] = (writextag('col', null, col_obj_w(i, col)));
	}
	o[o.length] = "</cols>";
	return o.join("");
}

function parse_ws_xml_autofilter(data) {
	var o = { ref: (data.match(/ref="([^"]*)"/)||[])[1]};
	return o;
}
function write_ws_xml_autofilter(data, ws, wb, idx) {
	var ref = typeof data.ref == "string" ? data.ref : encode_range(data.ref);
	if(!wb.Workbook) wb.Workbook = ({Sheets:[]});
	if(!wb.Workbook.Names) wb.Workbook.Names = [];
	var names = wb.Workbook.Names;
	var range = decode_range(ref);
	if(range.s.r == range.e.r) { range.e.r = decode_range(ws["!ref"]).e.r; ref = encode_range(range); }
	for(var i = 0; i < names.length; ++i) {
		var name = names[i];
		if(name.Name != '_xlnm._FilterDatabase') continue;
		if(name.Sheet != idx) continue;
		name.Ref = "'" + wb.SheetNames[idx] + "'!" + ref; break;
	}
	if(i == names.length) names.push({ Name: '_xlnm._FilterDatabase', Sheet: idx, Ref: "'" + wb.SheetNames[idx] + "'!" + ref  });
	return writextag("autoFilter", null, {ref:ref});
}

/* 18.3.1.88 sheetViews CT_SheetViews */
/* 18.3.1.87 sheetView CT_SheetView */
var sviewregex = /<(?:\w:)?sheetView(?:[^>a-z][^>]*)?\/?>/;
function parse_ws_xml_sheetviews(data, wb) {
	if(!wb.Views) wb.Views = [{}];
	(data.match(sviewregex)||[]).forEach(function(r, i) {
		var tag = parsexmltag(r);
		// $FlowIgnore
		if(!wb.Views[i]) wb.Views[i] = {};
		// $FlowIgnore
		if(+tag.zoomScale) wb.Views[i].zoom = +tag.zoomScale;
		// $FlowIgnore
		if(parsexmlbool(tag.rightToLeft)) wb.Views[i].RTL = true;
	});
}
function write_ws_xml_sheetviews(ws, opts, idx, wb) {
	var sview = ({workbookViewId:"0"});
	// $FlowIgnore
	if((((wb||{}).Workbook||{}).Views||[])[0]) sview.rightToLeft = wb.Workbook.Views[0].RTL ? "1" : "0";
	return writextag("sheetViews", writextag("sheetView", null, sview), {});
}

function write_ws_xml_cell(cell, ref, ws, opts) {
	if(cell.c) ws['!comments'].push([ref, cell.c]);
	if(cell.v === undefined && typeof cell.f !== "string" || cell.t === 'z' && !cell.f) return "";
	var vv = "";
	var oldt = cell.t, oldv = cell.v;
	if(cell.t !== "z") switch(cell.t) {
		case 'b': vv = cell.v ? "1" : "0"; break;
		case 'n': vv = ''+cell.v; break;
		case 'e': vv = BErr[cell.v]; break;
		case 'd':
			if(opts && opts.cellDates) vv = parseDate(cell.v, -1).toISOString();
			else {
				cell = dup(cell);
				cell.t = 'n';
				vv = ''+(cell.v = datenum(parseDate(cell.v)));
			}
			if(typeof cell.z === 'undefined') cell.z = SSF._table[14];
			break;
		default: vv = cell.v; break;
	}
	var v = writetag('v', escapexml(vv)), o = ({r:ref});
	/* TODO: cell style */
	var os = get_cell_style(opts.cellXfs, cell, opts);
	if(os !== 0) o.s = os;
	switch(cell.t) {
		case 'n': break;
		case 'd': o.t = "d"; break;
		case 'b': o.t = "b"; break;
		case 'e': o.t = "e"; break;
		case 'z': break;
		default: if(cell.v == null) { delete cell.t; break; }
			if(cell.v.length > 32767) throw new Error("Text length must not exceed 32767 characters");
			if(opts && opts.bookSST) {
				v = writetag('v', ''+get_sst_id(opts.Strings, cell.v, opts.revStrings));
				o.t = "s"; break;
			}
			o.t = "str"; break;
	}
	if(cell.t != oldt) { cell.t = oldt; cell.v = oldv; }
	if(typeof cell.f == "string" && cell.f) {
		var ff = cell.F && cell.F.slice(0, ref.length) == ref ? {t:"array", ref:cell.F} : null;
		v = writextag('f', escapexml(cell.f), ff) + (cell.v != null ? v : "");
	}
	if(cell.l) ws['!links'].push([ref, cell.l]);
	if(cell.D) o.cm = 1;
	return writextag('c', v, o);
}

var parse_ws_xml_data = (function() {
	var cellregex = /<(?:\w+:)?c[ \/>]/, rowregex = /<\/(?:\w+:)?row>/;
	var rregex = /r=["']([^"']*)["']/, isregex = /<(?:\w+:)?is>([\S\s]*?)<\/(?:\w+:)?is>/;
	var refregex = /ref=["']([^"']*)["']/;
	var match_v = matchtag("v"), match_f = matchtag("f");

return function parse_ws_xml_data(sdata, s, opts, guess, themes, styles) {
	var ri = 0, x = "", cells = [], cref = [], idx=0, i=0, cc=0, d="", p;
	var tag, tagr = 0, tagc = 0;
	var sstr, ftag;
	var fmtid = 0, fillid = 0;
	var do_format = Array.isArray(styles.CellXf), cf;
	var arrayf = [];
	var sharedf = [];
	var dense = Array.isArray(s);
	var rows = [], rowobj = {}, rowrite = false;
	var sheetStubs = !!opts.sheetStubs;
	for(var marr = sdata.split(rowregex), mt = 0, marrlen = marr.length; mt != marrlen; ++mt) {
		x = marr[mt].trim();
		var xlen = x.length;
		if(xlen === 0) continue;

		/* 18.3.1.73 row CT_Row */
		var rstarti = 0;
		outa: for(ri = 0; ri < xlen; ++ri) switch(/*x.charCodeAt(ri)*/x[ri]) {
			case ">" /*62*/:
				if(/*x.charCodeAt(ri-1) != 47*/x[ri-1] != "/") { ++ri; break outa; }
				if(opts && opts.cellStyles) {
					// TODO: avoid duplication
					tag = parsexmltag(x.slice(rstarti,ri), true);
					tagr = tag.r != null ? parseInt(tag.r, 10) : tagr+1; tagc = -1;
					if(opts.sheetRows && opts.sheetRows < tagr) continue;
					rowobj = {}; rowrite = false;
					if(tag.ht) { rowrite = true; rowobj.hpt = parseFloat(tag.ht); rowobj.hpx = pt2px(rowobj.hpt); }
					if(tag.hidden == "1") { rowrite = true; rowobj.hidden = true; }
					if(tag.outlineLevel != null) { rowrite = true; rowobj.level = +tag.outlineLevel; }
					if(rowrite) rows[tagr-1] = rowobj;
				}
				break;
			case "<" /*60*/: rstarti = ri; break;
		}
		if(rstarti >= ri) break;
		tag = parsexmltag(x.slice(rstarti,ri), true);
		tagr = tag.r != null ? parseInt(tag.r, 10) : tagr+1; tagc = -1;
		if(opts.sheetRows && opts.sheetRows < tagr) continue;
		if(guess.s.r > tagr - 1) guess.s.r = tagr - 1;
		if(guess.e.r < tagr - 1) guess.e.r = tagr - 1;

		if(opts && opts.cellStyles) {
			rowobj = {}; rowrite = false;
			if(tag.ht) { rowrite = true; rowobj.hpt = parseFloat(tag.ht); rowobj.hpx = pt2px(rowobj.hpt); }
			if(tag.hidden == "1") { rowrite = true; rowobj.hidden = true; }
			if(tag.outlineLevel != null) { rowrite = true; rowobj.level = +tag.outlineLevel; }
			if(rowrite) rows[tagr-1] = rowobj;
		}

		/* 18.3.1.4 c CT_Cell */
		cells = x.slice(ri).split(cellregex);
		for(var rslice = 0; rslice != cells.length; ++rslice) if(cells[rslice].trim().charAt(0) != "<") break;
		cells = cells.slice(rslice);
		for(ri = 0; ri != cells.length; ++ri) {
			x = cells[ri].trim();
			if(x.length === 0) continue;
			cref = x.match(rregex); idx = ri; i=0; cc=0;
			x = "<c " + (x.slice(0,1)=="<"?">":"") + x;
			if(cref != null && cref.length === 2) {
				idx = 0; d=cref[1];
				for(i=0; i != d.length; ++i) {
					if((cc=d.charCodeAt(i)-64) < 1 || cc > 26) break;
					idx = 26*idx + cc;
				}
				--idx;
				tagc = idx;
			} else ++tagc;
			for(i = 0; i != x.length; ++i) if(x.charCodeAt(i) === 62) break; ++i;
			tag = parsexmltag(x.slice(0,i), true);
			if(!tag.r) tag.r = encode_cell({r:tagr-1, c:tagc});
			d = x.slice(i);
			p = ({t:""});

			if((cref=d.match(match_v))!= null && cref[1] !== '') p.v=unescapexml(cref[1]);
			if(opts.cellFormula) {
				if((cref=d.match(match_f))!= null && cref[1] !== '') {
					/* TODO: match against XLSXFutureFunctions */
					p.f=unescapexml(utf8read(cref[1])).replace(/\r\n/g, "\n");
					if(!opts.xlfn) p.f = _xlfn(p.f);
					if(cref[0].indexOf('t="array"') > -1) {
						p.F = (d.match(refregex)||[])[1];
						if(p.F.indexOf(":") > -1) arrayf.push([safe_decode_range(p.F), p.F]);
					} else if(cref[0].indexOf('t="shared"') > -1) {
						// TODO: parse formula
						ftag = parsexmltag(cref[0]);
						var ___f = unescapexml(utf8read(cref[1]));
						if(!opts.xlfn) ___f = _xlfn(___f);
						sharedf[parseInt(ftag.si, 10)] = [ftag, ___f, tag.r];
					}
				} else if((cref=d.match(/<f[^>]*\/>/))) {
					ftag = parsexmltag(cref[0]);
					if(sharedf[ftag.si]) p.f = shift_formula_xlsx(sharedf[ftag.si][1], sharedf[ftag.si][2]/*[0].ref*/, tag.r);
				}
				/* TODO: factor out contains logic */
				var _tag = decode_cell(tag.r);
				for(i = 0; i < arrayf.length; ++i)
					if(_tag.r >= arrayf[i][0].s.r && _tag.r <= arrayf[i][0].e.r)
						if(_tag.c >= arrayf[i][0].s.c && _tag.c <= arrayf[i][0].e.c)
							p.F = arrayf[i][1];
			}

			if(tag.t == null && p.v === undefined) {
				if(p.f || p.F) {
					p.v = 0; p.t = "n";
				} else if(!sheetStubs) continue;
				else p.t = "z";
			}
			else p.t = tag.t || "n";
			if(guess.s.c > tagc) guess.s.c = tagc;
			if(guess.e.c < tagc) guess.e.c = tagc;
			/* 18.18.11 t ST_CellType */
			switch(p.t) {
				case 'n':
					if(p.v == "" || p.v == null) {
						if(!sheetStubs) continue;
						p.t = 'z';
					} else p.v = parseFloat(p.v);
					break;
				case 's':
					if(typeof p.v == 'undefined') {
						if(!sheetStubs) continue;
						p.t = 'z';
					} else {
						sstr = strs[parseInt(p.v, 10)];
						p.v = sstr.t;
						p.r = sstr.r;
						if(opts.cellHTML) p.h = sstr.h;
					}
					break;
				case 'str':
					p.t = "s";
					p.v = (p.v!=null) ? utf8read(p.v) : '';
					if(opts.cellHTML) p.h = escapehtml(p.v);
					break;
				case 'inlineStr':
					cref = d.match(isregex);
					p.t = 's';
					if(cref != null && (sstr = parse_si(cref[1]))) {
						p.v = sstr.t;
						if(opts.cellHTML) p.h = sstr.h;
					} else p.v = "";
					break;
				case 'b': p.v = parsexmlbool(p.v); break;
				case 'd':
					if(opts.cellDates) p.v = parseDate(p.v, 1);
					else { p.v = datenum(parseDate(p.v, 1)); p.t = 'n'; }
					break;
				/* error string in .w, number in .v */
				case 'e':
					if(!opts || opts.cellText !== false) p.w = p.v;
					p.v = RBErr[p.v]; break;
			}
			/* formatting */
			fmtid = fillid = 0;
			cf = null;
			if(do_format && tag.s !== undefined) {
				cf = styles.CellXf[tag.s];
				if(cf != null) {
					if(cf.numFmtId != null) fmtid = cf.numFmtId;
					if(opts.cellStyles) {
						if(cf.fillId != null) fillid = cf.fillId;
					}
				}
			}
			safe_format(p, fmtid, fillid, opts, themes, styles);
			if(opts.cellDates && do_format && p.t == 'n' && SSF.is_date(SSF._table[fmtid])) { p.t = 'd'; p.v = numdate(p.v); }
			if(tag.cm && opts.xlmeta) {
				var cm = (opts.xlmeta.Cell||[])[+tag.cm-1];
				if(cm && cm.type == 'XLDAPR') p.D = true;
			}
			if(dense) {
				var _r = decode_cell(tag.r);
				if(!s[_r.r]) s[_r.r] = [];
				s[_r.r][_r.c] = p;
			} else s[tag.r] = p;
		}
	}
	if(rows.length > 0) s['!rows'] = rows;
}; })();

function write_ws_xml_data(ws, opts, idx, wb) {
	var o = [], r = [], range = safe_decode_range(ws['!ref']), cell="", ref, rr = "", cols = [], R=0, C=0, rows = ws['!rows'];
	var dense = Array.isArray(ws);
	var params = ({r:rr}), row, height = -1;
	for(C = range.s.c; C <= range.e.c; ++C) cols[C] = encode_col(C);
	for(R = range.s.r; R <= range.e.r; ++R) {
		r = [];
		rr = encode_row(R);
		for(C = range.s.c; C <= range.e.c; ++C) {
			ref = cols[C] + rr;
			var _cell = dense ? (ws[R]||[])[C]: ws[ref];
			if(_cell === undefined) continue;
			if((cell = write_ws_xml_cell(_cell, ref, ws, opts, idx, wb)) != null) r.push(cell);
		}
		if(r.length > 0 || (rows && rows[R])) {
			params = ({r:rr});
			if(rows && rows[R]) {
				row = rows[R];
				if(row.hidden) params.hidden = 1;
				height = -1;
				if(row.hpx) height = px2pt(row.hpx);
				else if(row.hpt) height = row.hpt;
				if(height > -1) { params.ht = height; params.customHeight = 1; }
				if(row.level) { params.outlineLevel = row.level; }
			}
			o[o.length] = (writextag('row', r.join(""), params));
		}
	}
	if(rows) for(; R < rows.length; ++R) {
		if(rows && rows[R]) {
			params = ({r:R+1});
			row = rows[R];
			if(row.hidden) params.hidden = 1;
			height = -1;
			if (row.hpx) height = px2pt(row.hpx);
			else if (row.hpt) height = row.hpt;
			if (height > -1) { params.ht = height; params.customHeight = 1; }
			if (row.level) { params.outlineLevel = row.level; }
			o[o.length] = (writextag('row', "", params));
		}
	}
	return o.join("");
}

function write_ws_xml(idx, opts, wb, rels) {
	var o = [XML_HEADER, writextag('worksheet', null, {
		'xmlns': XMLNS_main[0],
		'xmlns:r': XMLNS.r
	})];
	var s = wb.SheetNames[idx], sidx = 0, rdata = "";
	var ws = wb.Sheets[s];
	if(ws == null) ws = {};
	var ref = ws['!ref'] || 'A1';
	var range = safe_decode_range(ref);
	if(range.e.c > 0x3FFF || range.e.r > 0xFFFFF) {
		if(opts.WTF) throw new Error("Range " + ref + " exceeds format limit A1:XFD1048576");
		range.e.c = Math.min(range.e.c, 0x3FFF);
		range.e.r = Math.min(range.e.c, 0xFFFFF);
		ref = encode_range(range);
	}
	if(!rels) rels = {};
	ws['!comments'] = [];
	var _drawing = [];

	write_ws_xml_sheetpr(ws, wb, idx, opts, o);

	o[o.length] = (writextag('dimension', null, {'ref': ref}));

	o[o.length] = write_ws_xml_sheetviews(ws, opts, idx, wb);

	/* TODO: store in WB, process styles */
	if(opts.sheetFormat) o[o.length] = (writextag('sheetFormatPr', null, {
		defaultRowHeight:opts.sheetFormat.defaultRowHeight||'16',
		baseColWidth:opts.sheetFormat.baseColWidth||'10',
		outlineLevelRow:opts.sheetFormat.outlineLevelRow||'7'
	}));

	if(ws['!cols'] != null && ws['!cols'].length > 0) o[o.length] = (write_ws_xml_cols(ws, ws['!cols']));

	o[sidx = o.length] = '<sheetData/>';
	ws['!links'] = [];
	if(ws['!ref'] != null) {
		rdata = write_ws_xml_data(ws, opts, idx, wb, rels);
		if(rdata.length > 0) o[o.length] = (rdata);
	}
	if(o.length>sidx+1) { o[o.length] = ('</sheetData>'); o[sidx]=o[sidx].replace("/>",">"); }

	/* sheetCalcPr */

	if(ws['!protect']) o[o.length] = write_ws_xml_protection(ws['!protect']);

	/* protectedRanges */
	/* scenarios */

	if(ws['!autofilter'] != null) o[o.length] = write_ws_xml_autofilter(ws['!autofilter'], ws, wb, idx);

	/* sortState */
	/* dataConsolidate */
	/* customSheetViews */

	if(ws['!merges'] != null && ws['!merges'].length > 0) o[o.length] = (write_ws_xml_merges(ws['!merges']));

	/* phoneticPr */
	/* conditionalFormatting */
	/* dataValidations */

	var relc = -1, rel, rId = -1;
	if(ws['!links'].length > 0) {
		o[o.length] = "<hyperlinks>";
ws['!links'].forEach(function(l) {
			if(!l[1].Target) return;
			rel = ({"ref":l[0]});
			if(l[1].Target.charAt(0) != "#") {
				rId = add_rels(rels, -1, escapexml(l[1].Target).replace(/#.*$/, ""), RELS.HLINK);
				rel["r:id"] = "rId"+rId;
			}
			if((relc = l[1].Target.indexOf("#")) > -1) rel.location = escapexml(l[1].Target.slice(relc+1));
			if(l[1].Tooltip) rel.tooltip = escapexml(l[1].Tooltip);
			o[o.length] = writextag("hyperlink",null,rel);
		});
		o[o.length] = "</hyperlinks>";
	}
	delete ws['!links'];

	/* printOptions */

	if(ws['!margins'] != null) o[o.length] =  write_ws_xml_margins(ws['!margins']);

	/* pageSetup */
	/* headerFooter */
	/* rowBreaks */
	/* colBreaks */
	/* customProperties */
	/* cellWatches */

	if(!opts || opts.ignoreEC || (opts.ignoreEC == (void 0))) o[o.length] = writetag("ignoredErrors", writextag("ignoredError", null, {numberStoredAsText:1, sqref:ref}));

	/* smartTags */

	if(_drawing.length > 0) {
		rId = add_rels(rels, -1, "../drawings/drawing" + (idx+1) + ".xml", RELS.DRAW);
		o[o.length] = writextag("drawing", null, {"r:id":"rId" + rId});
		ws['!drawing'] = _drawing;
	}

	if(ws['!comments'].length > 0) {
		rId = add_rels(rels, -1, "../drawings/vmlDrawing" + (idx+1) + ".vml", RELS.VML);
		o[o.length] = writextag("legacyDrawing", null, {"r:id":"rId" + rId});
		ws['!legacy'] = rId;
	}

	/* legacyDrawingHF */
	/* picture */
	/* oleObjects */
	/* controls */
	/* webPublishItems */
	/* tableParts */
	/* extLst */

	if(o.length>1) { o[o.length] = ('</worksheet>'); o[1]=o[1].replace("/>",">"); }
	return o.join("");
}
function parse_Cache(data) {
	var col = [];
	var num = data.match(/^<c:numCache>/);
	var f;

	/* 21.2.2.150 pt CT_NumVal */
	(data.match(/<c:pt idx="(\d*)">(.*?)<\/c:pt>/mg)||[]).forEach(function(pt) {
		var q = pt.match(/<c:pt idx="(\d*?)"><c:v>(.*)<\/c:v><\/c:pt>/);
		if(!q) return;
		col[+q[1]] = num ? +q[2] : q[2];
	});

	/* 21.2.2.71 formatCode CT_Xstring */
	var nf = unescapexml((data.match(/<c:formatCode>([\s\S]*?)<\/c:formatCode>/) || ["","General"])[1]);

	(data.match(/<c:f>(.*?)<\/c:f>/mg)||[]).forEach(function(F) { f = F.replace(/<.*?>/g,""); });

	return [col, nf, f];
}

/* 21.2 DrawingML - Charts */
function parse_chart(data, name, opts, rels, wb, csheet) {
	var cs = ((csheet || {"!type":"chart"}));
	if(!data) return csheet;
	/* 21.2.2.27 chart CT_Chart */

	var C = 0, R = 0, col = "A";
	var refguess = {s: {r:2000000, c:2000000}, e: {r:0, c:0} };

	/* 21.2.2.120 numCache CT_NumData */
	(data.match(/<c:numCache>[\s\S]*?<\/c:numCache>/gm)||[]).forEach(function(nc) {
		var cache = parse_Cache(nc);
		refguess.s.r = refguess.s.c = 0;
		refguess.e.c = C;
		col = encode_col(C);
		cache[0].forEach(function(n,i) {
			cs[col + encode_row(i)] = {t:'n', v:n, z:cache[1] };
			R = i;
		});
		if(refguess.e.r < R) refguess.e.r = R;
		++C;
	});
	if(C > 0) cs["!ref"] = encode_range(refguess);
	return cs;
}
RELS.CS = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/chartsheet";

/* 18.3 Worksheets also covers Chartsheets */
function parse_cs_xml(data, opts, idx, rels, wb) {
	if(!data) return data;
	/* 18.3.1.12 chartsheet CT_ChartSheet */
	if(!rels) rels = {'!id':{}};
	var s = ({'!type':"chart", '!drawel':null, '!rel':""});
	var m;

	/* 18.3.1.83 sheetPr CT_ChartsheetPr */
	var sheetPr = data.match(sheetprregex);
	if(sheetPr) parse_ws_xml_sheetpr(sheetPr[0], s, wb, idx);

	/* 18.3.1.36 drawing CT_Drawing */
	if((m = data.match(/drawing r:id="(.*?)"/))) s['!rel'] = m[1];

	if(rels['!id'][s['!rel']]) s['!drawel'] = rels['!id'][s['!rel']];
	return s;
}
function write_cs_xml(idx, opts, wb, rels) {
	var o = [XML_HEADER, writextag('chartsheet', null, {
		'xmlns': XMLNS_main[0],
		'xmlns:r': XMLNS.r
	})];
	o[o.length] = writextag("drawing", null, {"r:id": "rId1"});
	add_rels(rels, -1, "../drawings/drawing" + (idx+1) + ".xml", RELS.DRAW);
	if(o.length>2) { o[o.length] = ('</chartsheet>'); o[1]=o[1].replace("/>",">"); }
	return o.join("");
}
/* 18.2.28 (CT_WorkbookProtection) Defaults */
var WBPropsDef = [
	['allowRefreshQuery',           false, "bool"],
	['autoCompressPictures',        true,  "bool"],
	['backupFile',                  false, "bool"],
	['checkCompatibility',          false, "bool"],
	['CodeName',                    ''],
	['date1904',                    false, "bool"],
	['defaultThemeVersion',         0,      "int"],
	['filterPrivacy',               false, "bool"],
	['hidePivotFieldList',          false, "bool"],
	['promptedSolutions',           false, "bool"],
	['publishItems',                false, "bool"],
	['refreshAllConnections',       false, "bool"],
	['saveExternalLinkValues',      true,  "bool"],
	['showBorderUnselectedTables',  true,  "bool"],
	['showInkAnnotation',           true,  "bool"],
	['showObjects',                 'all'],
	['showPivotChartFilter',        false, "bool"],
	['updateLinks', 'userSet']
];

/* 18.2.30 (CT_BookView) Defaults */
var WBViewDef = [
	['activeTab',                   0,      "int"],
	['autoFilterDateGrouping',      true,  "bool"],
	['firstSheet',                  0,      "int"],
	['minimized',                   false, "bool"],
	['showHorizontalScroll',        true,  "bool"],
	['showSheetTabs',               true,  "bool"],
	['showVerticalScroll',          true,  "bool"],
	['tabRatio',                    600,    "int"],
	['visibility',                  'visible']
	//window{Height,Width}, {x,y}Window
];

/* 18.2.19 (CT_Sheet) Defaults */
var SheetDef = [
	//['state', 'visible']
];

/* 18.2.2  (CT_CalcPr) Defaults */
var CalcPrDef = [
	['calcCompleted', 'true'],
	['calcMode', 'auto'],
	['calcOnSave', 'true'],
	['concurrentCalc', 'true'],
	['fullCalcOnLoad', 'false'],
	['fullPrecision', 'true'],
	['iterate', 'false'],
	['iterateCount', '100'],
	['iterateDelta', '0.001'],
	['refMode', 'A1']
];

/* 18.2.3 (CT_CustomWorkbookView) Defaults */
/*var CustomWBViewDef = [
	['autoUpdate', 'false'],
	['changesSavedWin', 'false'],
	['includeHiddenRowCol', 'true'],
	['includePrintSettings', 'true'],
	['maximized', 'false'],
	['minimized', 'false'],
	['onlySync', 'false'],
	['personalView', 'false'],
	['showComments', 'commIndicator'],
	['showFormulaBar', 'true'],
	['showHorizontalScroll', 'true'],
	['showObjects', 'all'],
	['showSheetTabs', 'true'],
	['showStatusbar', 'true'],
	['showVerticalScroll', 'true'],
	['tabRatio', '600'],
	['xWindow', '0'],
	['yWindow', '0']
];*/

function push_defaults_array(target, defaults) {
	for(var j = 0; j != target.length; ++j) { var w = target[j];
		for(var i=0; i != defaults.length; ++i) { var z = defaults[i];
			if(w[z[0]] == null) w[z[0]] = z[1];
			else switch(z[2]) {
			case "bool": if(typeof w[z[0]] == "string") w[z[0]] = parsexmlbool(w[z[0]]); break;
			case "int": if(typeof w[z[0]] == "string") w[z[0]] = parseInt(w[z[0]], 10); break;
			}
		}
	}
}
function push_defaults(target, defaults) {
	for(var i = 0; i != defaults.length; ++i) { var z = defaults[i];
		if(target[z[0]] == null) target[z[0]] = z[1];
		else switch(z[2]) {
			case "bool": if(typeof target[z[0]] == "string") target[z[0]] = parsexmlbool(target[z[0]]); break;
			case "int": if(typeof target[z[0]] == "string") target[z[0]] = parseInt(target[z[0]], 10); break;
		}
	}
}

function parse_wb_defaults(wb) {
	push_defaults(wb.WBProps, WBPropsDef);
	push_defaults(wb.CalcPr, CalcPrDef);

	push_defaults_array(wb.WBView, WBViewDef);
	push_defaults_array(wb.Sheets, SheetDef);

	_ssfopts.date1904 = parsexmlbool(wb.WBProps.date1904);
}

function safe1904(wb) {
	/* TODO: store date1904 somewhere else */
	if(!wb.Workbook) return "false";
	if(!wb.Workbook.WBProps) return "false";
	return parsexmlbool(wb.Workbook.WBProps.date1904) ? "true" : "false";
}

var badchars = "][*?\/\\".split("");
function check_ws_name(n, safe) {
	if(n.length > 31) { if(safe) return false; throw new Error("Sheet names cannot exceed 31 chars"); }
	var _good = true;
	badchars.forEach(function(c) {
		if(n.indexOf(c) == -1) return;
		if(!safe) throw new Error("Sheet name cannot contain : \\ / ? * [ ]");
		_good = false;
	});
	return _good;
}
function check_wb_names(N, S, codes) {
	N.forEach(function(n,i) {
		check_ws_name(n);
		for(var j = 0; j < i; ++j) if(n == N[j]) throw new Error("Duplicate Sheet Name: " + n);
		if(codes) {
			var cn = (S && S[i] && S[i].CodeName) || n;
			if(cn.charCodeAt(0) == 95 && cn.length > 22) throw new Error("Bad Code Name: Worksheet" + cn);
		}
	});
}
function check_wb(wb) {
	if(!wb || !wb.SheetNames || !wb.Sheets) throw new Error("Invalid Workbook");
	if(!wb.SheetNames.length) throw new Error("Workbook is empty");
	var Sheets = (wb.Workbook && wb.Workbook.Sheets) || [];
	check_wb_names(wb.SheetNames, Sheets, !!wb.vbaraw);
	for(var i = 0; i < wb.SheetNames.length; ++i) check_ws(wb.Sheets[wb.SheetNames[i]], wb.SheetNames[i], i);
	/* TODO: validate workbook */
}
/* 18.2 Workbook */
var wbnsregex = /<\w+:workbook/;
function parse_wb_xml(data, opts) {
	if(!data) throw new Error("Could not find file");
	var wb = { AppVersion:{}, WBProps:{}, WBView:[], Sheets:[], CalcPr:{}, Names:[], xmlns: "" };
	var pass = false, xmlns = "xmlns";
	var dname = {}, dnstart = 0;
	data.replace(tagregex, function xml_wb(x, idx) {
		var y = parsexmltag(x);
		switch(strip_ns(y[0])) {
			case '<?xml': break;

			/* 18.2.27 workbook CT_Workbook 1 */
			case '<workbook':
				if(x.match(wbnsregex)) xmlns = "xmlns" + x.match(/<(\w+):/)[1];
				wb.xmlns = y[xmlns];
				break;
			case '</workbook>': break;

			/* 18.2.13 fileVersion CT_FileVersion ? */
			case '<fileVersion': delete y[0]; wb.AppVersion = y; break;
			case '<fileVersion/>': case '</fileVersion>': break;

			/* 18.2.12 fileSharing CT_FileSharing ? */
			case '<fileSharing':
				break;
			case '<fileSharing/>': break;

			/* 18.2.28 workbookPr CT_WorkbookPr ? */
			case '<workbookPr':
			case '<workbookPr/>':
				WBPropsDef.forEach(function(w) {
					if(y[w[0]] == null) return;
					switch(w[2]) {
						case "bool": wb.WBProps[w[0]] = parsexmlbool(y[w[0]]); break;
						case "int": wb.WBProps[w[0]] = parseInt(y[w[0]], 10); break;
						default: wb.WBProps[w[0]] = y[w[0]];
					}
				});
				if(y.codeName) wb.WBProps.CodeName = utf8read(y.codeName);
				break;
			case '</workbookPr>': break;

			/* 18.2.29 workbookProtection CT_WorkbookProtection ? */
			case '<workbookProtection':
				break;
			case '<workbookProtection/>': break;

			/* 18.2.1  bookViews CT_BookViews ? */
			case '<bookViews': case '<bookViews>': case '</bookViews>': break;
			/* 18.2.30   workbookView CT_BookView + */
			case '<workbookView': case '<workbookView/>': delete y[0]; wb.WBView.push(y); break;
			case '</workbookView>': break;

			/* 18.2.20 sheets CT_Sheets 1 */
			case '<sheets': case '<sheets>': case '</sheets>': break; // aggregate sheet
			/* 18.2.19   sheet CT_Sheet + */
			case '<sheet':
				switch(y.state) {
					case "hidden": y.Hidden = 1; break;
					case "veryHidden": y.Hidden = 2; break;
					default: y.Hidden = 0;
				}
				delete y.state;
				y.name = unescapexml(utf8read(y.name));
				delete y[0]; wb.Sheets.push(y); break;
			case '</sheet>': break;

			/* 18.2.15 functionGroups CT_FunctionGroups ? */
			case '<functionGroups': case '<functionGroups/>': break;
			/* 18.2.14   functionGroup CT_FunctionGroup + */
			case '<functionGroup': break;

			/* 18.2.9  externalReferences CT_ExternalReferences ? */
			case '<externalReferences': case '</externalReferences>': case '<externalReferences>': break;
			/* 18.2.8    externalReference CT_ExternalReference + */
			case '<externalReference': break;

			/* 18.2.6  definedNames CT_DefinedNames ? */
			case '<definedNames/>': break;
			case '<definedNames>': case '<definedNames': pass=true; break;
			case '</definedNames>': pass=false; break;
			/* 18.2.5    definedName CT_DefinedName + */
			case '<definedName': {
				dname = {};
				dname.Name = utf8read(y.name);
				if(y.comment) dname.Comment = y.comment;
				if(y.localSheetId) dname.Sheet = +y.localSheetId;
				if(parsexmlbool(y.hidden||"0")) dname.Hidden = true;
				dnstart = idx + x.length;
			}	break;
			case '</definedName>': {
				dname.Ref = unescapexml(utf8read(data.slice(dnstart, idx)));
				wb.Names.push(dname);
			} break;
			case '<definedName/>': break;

			/* 18.2.2  calcPr CT_CalcPr ? */
			case '<calcPr': delete y[0]; wb.CalcPr = y; break;
			case '<calcPr/>': delete y[0]; wb.CalcPr = y; break;
			case '</calcPr>': break;

			/* 18.2.16 oleSize CT_OleSize ? (ref required) */
			case '<oleSize': break;

			/* 18.2.4  customWorkbookViews CT_CustomWorkbookViews ? */
			case '<customWorkbookViews>': case '</customWorkbookViews>': case '<customWorkbookViews': break;
			/* 18.2.3  customWorkbookView CT_CustomWorkbookView + */
			case '<customWorkbookView': case '</customWorkbookView>': break;

			/* 18.2.18 pivotCaches CT_PivotCaches ? */
			case '<pivotCaches>': case '</pivotCaches>': case '<pivotCaches': break;
			/* 18.2.17 pivotCache CT_PivotCache ? */
			case '<pivotCache': break;

			/* 18.2.21 smartTagPr CT_SmartTagPr ? */
			case '<smartTagPr': case '<smartTagPr/>': break;

			/* 18.2.23 smartTagTypes CT_SmartTagTypes ? */
			case '<smartTagTypes': case '<smartTagTypes>': case '</smartTagTypes>': break;
			/* 18.2.22 smartTagType CT_SmartTagType ? */
			case '<smartTagType': break;

			/* 18.2.24 webPublishing CT_WebPublishing ? */
			case '<webPublishing': case '<webPublishing/>': break;

			/* 18.2.11 fileRecoveryPr CT_FileRecoveryPr ? */
			case '<fileRecoveryPr': case '<fileRecoveryPr/>': break;

			/* 18.2.26 webPublishObjects CT_WebPublishObjects ? */
			case '<webPublishObjects>': case '<webPublishObjects': case '</webPublishObjects>': break;
			/* 18.2.25 webPublishObject CT_WebPublishObject ? */
			case '<webPublishObject': break;

			/* 18.2.10 extLst CT_ExtensionList ? */
			case '<extLst': case '<extLst>': case '</extLst>': case '<extLst/>': break;
			/* 18.2.7  ext CT_Extension + */
			case '<ext': pass=true; break; //TODO: check with versions of excel
			case '</ext>': pass=false; break;

			/* Others */
			case '<ArchID': break;
			case '<AlternateContent':
			case '<AlternateContent>': pass=true; break;
			case '</AlternateContent>': pass=false; break;

			/* TODO */
			case '<revisionPtr': break;

			default: if(!pass && opts.WTF) throw new Error('unrecognized ' + y[0] + ' in workbook');
		}
		return x;
	});
	if(XMLNS_main.indexOf(wb.xmlns) === -1) throw new Error("Unknown Namespace: " + wb.xmlns);

	parse_wb_defaults(wb);

	return wb;
}

function write_wb_xml(wb) {
	var o = [XML_HEADER];
	o[o.length] = writextag('workbook', null, {
		'xmlns': XMLNS_main[0],
		//'xmlns:mx': XMLNS.mx,
		//'xmlns:s': XMLNS_main[0],
		'xmlns:r': XMLNS.r
	});

	var write_names = (wb.Workbook && (wb.Workbook.Names||[]).length > 0);

	/* fileVersion */
	/* fileSharing */

	var workbookPr = ({codeName:"ThisWorkbook"});
	if(wb.Workbook && wb.Workbook.WBProps) {
		WBPropsDef.forEach(function(x) {
if((wb.Workbook.WBProps[x[0]]) == null) return;
			if((wb.Workbook.WBProps[x[0]]) == x[1]) return;
			workbookPr[x[0]] = (wb.Workbook.WBProps[x[0]]);
		});
if(wb.Workbook.WBProps.CodeName) { workbookPr.codeName = wb.Workbook.WBProps.CodeName; delete workbookPr.CodeName; }
	}
	o[o.length] = (writextag('workbookPr', null, workbookPr));

	/* workbookProtection */

	var sheets = wb.Workbook && wb.Workbook.Sheets || [];
	var i = 0;

	/* bookViews only written if first worksheet is hidden */
	if(sheets && sheets[0] && !!sheets[0].Hidden) {
		o[o.length] = "<bookViews>";
		for(i = 0; i != wb.SheetNames.length; ++i) {
			if(!sheets[i]) break;
			if(!sheets[i].Hidden) break;
		}
		if(i == wb.SheetNames.length) i = 0;
		o[o.length] = '<workbookView firstSheet="' + i + '" activeTab="' + i + '"/>';
		o[o.length] = "</bookViews>";
	}

	o[o.length] = "<sheets>";
	for(i = 0; i != wb.SheetNames.length; ++i) {
		var sht = ({name:escapexml(wb.SheetNames[i].slice(0,31))});
		sht.sheetId = ""+(i+1);
		sht["r:id"] = "rId"+(i+1);
		if(sheets[i]) switch(sheets[i].Hidden) {
			case 1: sht.state = "hidden"; break;
			case 2: sht.state = "veryHidden"; break;
		}
		o[o.length] = (writextag('sheet',null,sht));
	}
	o[o.length] = "</sheets>";

	/* functionGroups */
	/* externalReferences */

	if(write_names) {
		o[o.length] = "<definedNames>";
		if(wb.Workbook && wb.Workbook.Names) wb.Workbook.Names.forEach(function(n) {
			var d = {name:n.Name};
			if(n.Comment) d.comment = n.Comment;
			if(n.Sheet != null) d.localSheetId = ""+n.Sheet;
			if(n.Hidden) d.hidden = "1";
			if(!n.Ref) return;
			o[o.length] = writextag('definedName', escapexml(n.Ref), d);
		});
		o[o.length] = "</definedNames>";
	}

	/* calcPr */
	/* oleSize */
	/* customWorkbookViews */
	/* pivotCaches */
	/* smartTagPr */
	/* smartTagTypes */
	/* webPublishing */
	/* fileRecoveryPr */
	/* webPublishObjects */
	/* extLst */

	if(o.length>2){ o[o.length] = '</workbook>'; o[1]=o[1].replace("/>",">"); }
	return o.join("");
}
function parse_wb(data, name, opts) {
	if(name.slice(-4)===".bin") return parse_wb_bin((data), opts);
	return parse_wb_xml((data), opts);
}

function parse_ws(data, name, idx, opts, rels, wb, themes, styles) {
	if(name.slice(-4)===".bin") return parse_ws_bin((data), opts, idx, rels, wb, themes, styles);
	return parse_ws_xml((data), opts, idx, rels, wb, themes, styles);
}

function parse_cs(data, name, idx, opts, rels, wb, themes, styles) {
	if(name.slice(-4)===".bin") return parse_cs_bin((data), opts, idx, rels, wb, themes, styles);
	return parse_cs_xml((data), opts, idx, rels, wb, themes, styles);
}

function parse_ms(data, name, idx, opts, rels, wb, themes, styles) {
	if(name.slice(-4)===".bin") return parse_ms_bin((data), opts, idx, rels, wb, themes, styles);
	return parse_ms_xml((data), opts, idx, rels, wb, themes, styles);
}

function parse_ds(data, name, idx, opts, rels, wb, themes, styles) {
	if(name.slice(-4)===".bin") return parse_ds_bin((data), opts, idx, rels, wb, themes, styles);
	return parse_ds_xml((data), opts, idx, rels, wb, themes, styles);
}

function parse_sty(data, name, themes, opts) {
	if(name.slice(-4)===".bin") return parse_sty_bin((data), themes, opts);
	return parse_sty_xml((data), themes, opts);
}

function parse_theme(data, name, opts) {
	return parse_theme_xml(data, opts);
}

function parse_sst(data, name, opts) {
	if(name.slice(-4)===".bin") return parse_sst_bin((data), opts);
	return parse_sst_xml((data), opts);
}

function parse_cmnt(data, name, opts) {
	if(name.slice(-4)===".bin") return parse_comments_bin((data), opts);
	return parse_comments_xml((data), opts);
}

function parse_cc(data, name, opts) {
	if(name.slice(-4)===".bin") return parse_cc_bin((data), name, opts);
	return parse_cc_xml((data), name, opts);
}

function parse_xlink(data, rel, name, opts) {
	if(name.slice(-4)===".bin") return parse_xlink_bin((data), rel, name, opts);
	return parse_xlink_xml((data), rel, name, opts);
}

function parse_xlmeta(data, name, opts) {
	if(name.slice(-4)===".bin") return parse_xlmeta_bin((data), name, opts);
	return parse_xlmeta_xml((data), name, opts);
}

function write_wb(wb, name, opts) {
	return (name.slice(-4)===".bin" ? write_wb_bin : write_wb_xml)(wb, opts);
}

function write_ws(data, name, opts, wb, rels) {
	return (name.slice(-4)===".bin" ? write_ws_bin : write_ws_xml)(data, opts, wb, rels);
}

// eslint-disable-next-line no-unused-vars
function write_cs(data, name, opts, wb, rels) {
	return (name.slice(-4)===".bin" ? write_cs_bin : write_cs_xml)(data, opts, wb, rels);
}

function write_sty(data, name, opts) {
	return (name.slice(-4)===".bin" ? write_sty_bin : write_sty_xml)(data, opts);
}

function write_sst(data, name, opts) {
	return (name.slice(-4)===".bin" ? write_sst_bin : write_sst_xml)(data, opts);
}

function write_cmnt(data, name, opts) {
	return (name.slice(-4)===".bin" ? write_comments_bin : write_comments_xml)(data, opts);
}
/*
function write_cc(data, name:string, opts) {
	return (name.slice(-4)===".bin" ? write_cc_bin : write_cc_xml)(data, opts);
}
*/

function write_xlmeta(name) {
	return (name.slice(-4)===".bin" ? write_xlmeta_bin : write_xlmeta_xml)();
}
/* note: browser DOM element cannot see mso- style attrs, must parse */
var HTML_ = (function() {
	function html_to_sheet(str, _opts) {
		var opts = _opts || {};
		if(DENSE != null && opts.dense == null) opts.dense = DENSE;
		var ws = opts.dense ? ([]) : ({});
		str = str.replace(/<!--.*?-->/g, "");
		var mtch = str.match(/<table/i);
		if(!mtch) throw new Error("Invalid HTML: could not find <table>");
		var mtch2 = str.match(/<\/table/i);
		var i = mtch.index, j = mtch2 && mtch2.index || str.length;
		var rows = split_regex(str.slice(i, j), /(:?<tr[^>]*>)/i, "<tr>");
		var R = -1, C = 0, RS = 0, CS = 0;
		var range = {s:{r:10000000, c:10000000},e:{r:0,c:0}};
		var merges = [];
		for(i = 0; i < rows.length; ++i) {
			var row = rows[i].trim();
			var hd = row.slice(0,3).toLowerCase();
			if(hd == "<tr") { ++R; if(opts.sheetRows && opts.sheetRows <= R) { --R; break; } C = 0; continue; }
			if(hd != "<td" && hd != "<th") continue;
			var cells = row.split(/<\/t[dh]>/i);
			for(j = 0; j < cells.length; ++j) {
				var cell = cells[j].trim();
				if(!cell.match(/<t[dh]/i)) continue;
				var m = cell, cc = 0;
				/* TODO: parse styles etc */
				while(m.charAt(0) == "<" && (cc = m.indexOf(">")) > -1) m = m.slice(cc+1);
				for(var midx = 0; midx < merges.length; ++midx) {
					var _merge = merges[midx];
					if(_merge.s.c == C && _merge.s.r < R && R <= _merge.e.r) { C = _merge.e.c + 1; midx = -1; }
				}
				var tag = parsexmltag(cell.slice(0, cell.indexOf(">")));
				CS = tag.colspan ? +tag.colspan : 1;
				if((RS = +tag.rowspan)>1 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}});
				var _t = tag.t || tag["data-t"] || "";
				/* TODO: generate stub cells */
				if(!m.length) { C += CS; continue; }
				m = htmldecode(m);
				if(range.s.r > R) range.s.r = R; if(range.e.r < R) range.e.r = R;
				if(range.s.c > C) range.s.c = C; if(range.e.c < C) range.e.c = C;
				if(!m.length) { C += CS; continue; }
				var o = {t:'s', v:m};
				if(opts.raw || !m.trim().length || _t == 's'){}
				else if(m === 'TRUE') o = {t:'b', v:true};
				else if(m === 'FALSE') o = {t:'b', v:false};
				else if(!isNaN(fuzzynum(m))) o = {t:'n', v:fuzzynum(m)};
				else if(!isNaN(fuzzydate(m).getDate())) {
					o = ({t:'d', v:parseDate(m)});
					if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)});
					o.z = opts.dateNF || SSF._table[14];
				}
				if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = o; }
				else ws[encode_cell({r:R, c:C})] = o;
				C += CS;
			}
		}
		ws['!ref'] = encode_range(range);
		if(merges.length) ws["!merges"] = merges;
		return ws;
	}
	function html_to_book(str, opts) {
		var mtch = str.match(/<table[\s\S]*?>[\s\S]*?<\/table>/gi);
		if(!mtch || mtch.length == 0) throw new Error("Invalid HTML: could not find <table>");
		if(mtch.length == 1) return sheet_to_workbook(html_to_sheet(mtch[0], opts), opts);
		var wb = book_new();
		mtch.forEach(function(s, idx) { book_append_sheet(wb, html_to_sheet(s, opts), "Sheet" + (idx+1)); });
		return wb;
	}
	function make_html_row(ws, r, R, o) {
		var M = (ws['!merges'] ||[]);
		var oo = [];
		for(var C = r.s.c; C <= r.e.c; ++C) {
			var RS = 0, CS = 0;
			for(var j = 0; j < M.length; ++j) {
				if(M[j].s.r > R || M[j].s.c > C) continue;
				if(M[j].e.r < R || M[j].e.c < C) continue;
				if(M[j].s.r < R || M[j].s.c < C) { RS = -1; break; }
				RS = M[j].e.r - M[j].s.r + 1; CS = M[j].e.c - M[j].s.c + 1; break;
			}
			if(RS < 0) continue;
			var coord = encode_cell({r:R,c:C});
			var cell = o.dense ? (ws[R]||[])[C] : ws[coord];
			/* TODO: html entities */
			var w = (cell && cell.v != null) && (cell.h || escapehtml(cell.w || (format_cell(cell), cell.w) || "")) || "";
			var sp = ({});
			if(RS > 1) sp.rowspan = RS;
			if(CS > 1) sp.colspan = CS;
			if(o.editable) w = '<span contenteditable="true">' + w + '</span>';
			else if(cell) {
				sp["data-t"] = cell && cell.t || 'z';
				if(cell.v != null) sp["data-v"] = cell.v;
				if(cell.z != null) sp["data-z"] = cell.z;
				if(cell.l && (cell.l.Target || "#").charAt(0) != "#") w = '<a href="' + cell.l.Target +'">' + w + '</a>';
			}
			sp.id = (o.id || "sjs") + "-" + coord;
			oo.push(writextag('td', w, sp));
		}
		var preamble = "<tr>";
		return preamble + oo.join("") + "</tr>";
	}
	function make_html_preamble(ws, R, o) {
		var out = [];
		return out.join("") + '<table' + (o && o.id ? ' id="' + o.id + '"' : "") + '>';
	}
	var _BEGIN = '<html><head><meta charset="utf-8"/><title>SheetJS Table Export</title></head><body>';
	var _END = '</body></html>';
	function sheet_to_html(ws, opts/*, wb:?Workbook*/) {
		var o = opts || {};
		var header = o.header != null ? o.header : _BEGIN;
		var footer = o.footer != null ? o.footer : _END;
		var out = [header];
		var r = decode_range(ws['!ref']);
		o.dense = Array.isArray(ws);
		out.push(make_html_preamble(ws, r, o));
		for(var R = r.s.r; R <= r.e.r; ++R) out.push(make_html_row(ws, r, R, o));
		out.push("</table>" + footer);
		return out.join("");

	}
	return {
		to_workbook: html_to_book,
		to_sheet: html_to_sheet,
		_row: make_html_row,
		BEGIN: _BEGIN,
		END: _END,
		_preamble: make_html_preamble,
		from_sheet: sheet_to_html
	};
})();

function sheet_add_dom(ws, table, _opts) {
	var opts = _opts || {};
	if(DENSE != null) opts.dense = DENSE;
	var or_R = 0, or_C = 0;
	if(opts.origin != null) {
		if(typeof opts.origin == 'number') or_R = opts.origin;
		else {
			var _origin = typeof opts.origin == "string" ? decode_cell(opts.origin) : opts.origin;
			or_R = _origin.r; or_C = _origin.c;
		}
	}

	var rows = table.getElementsByTagName('tr');
	var sheetRows = Math.min(opts.sheetRows||10000000, rows.length);
	var range = {s:{r:0,c:0},e:{r:or_R,c:or_C}};
	if(ws["!ref"]) {
		var _range = decode_range(ws["!ref"]);
		range.s.r = Math.min(range.s.r, _range.s.r);
		range.s.c = Math.min(range.s.c, _range.s.c);
		range.e.r = Math.max(range.e.r, _range.e.r);
		range.e.c = Math.max(range.e.c, _range.e.c);
		if(or_R == -1) range.e.r = or_R = _range.e.r + 1;
	}
	var merges = [], midx = 0;
	var rowinfo = ws["!rows"] || (ws["!rows"] = []);
	var _R = 0, R = 0, _C = 0, C = 0, RS = 0, CS = 0;
	if(!ws["!cols"]) ws['!cols'] = [];
	for(; _R < rows.length && R < sheetRows; ++_R) {
		var row = rows[_R];
		if (is_dom_element_hidden(row)) {
			if (opts.display) continue;
			rowinfo[R] = {hidden: true};
		}
		var elts = (row.children);
		for(_C = C = 0; _C < elts.length; ++_C) {
			var elt = elts[_C];
			if (opts.display && is_dom_element_hidden(elt)) continue;
			var v = elt.hasAttribute('data-v') ? elt.getAttribute('data-v') : elt.hasAttribute('v') ? elt.getAttribute('v') : htmldecode(elt.innerHTML);
			var z = elt.getAttribute('data-z') || elt.getAttribute('z');
			for(midx = 0; midx < merges.length; ++midx) {
				var m = merges[midx];
				if(m.s.c == C + or_C && m.s.r < R + or_R && R + or_R <= m.e.r) { C = m.e.c+1 - or_C; midx = -1; }
			}
			/* TODO: figure out how to extract nonstandard mso- style */
			CS = +elt.getAttribute("colspan") || 1;
			if( ((RS = (+elt.getAttribute("rowspan") || 1)))>1 || CS>1) merges.push({s:{r:R + or_R,c:C + or_C},e:{r:R + or_R + (RS||1) - 1, c:C + or_C + (CS||1) - 1}});
			var o = {t:'s', v:v};
			var _t = elt.getAttribute("data-t") || elt.getAttribute("t") || "";
			if(v != null) {
				if(v.length == 0) o.t = _t || 'z';
				else if(opts.raw || v.trim().length == 0 || _t == "s"){}
				else if(v === 'TRUE') o = {t:'b', v:true};
				else if(v === 'FALSE') o = {t:'b', v:false};
				else if(!isNaN(fuzzynum(v))) o = {t:'n', v:fuzzynum(v)};
				else if(!isNaN(fuzzydate(v).getDate())) {
					o = ({t:'d', v:parseDate(v)});
					if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)});
					o.z = opts.dateNF || SSF._table[14];
				}
			}
			if(o.z === undefined && z != null) o.z = z;
			/* The first link is used.  Links are assumed to be fully specified.
			 * TODO: The right way to process relative links is to make a new <a> */
			var l = "", Aelts = elt.getElementsByTagName("A");
			if(Aelts && Aelts.length) for(var Aelti = 0; Aelti < Aelts.length; ++Aelti)	if(Aelts[Aelti].hasAttribute("href")) {
				l = Aelts[Aelti].getAttribute("href"); if(l.charAt(0) != "#") break;
			}
			if(l && l.charAt(0) != "#") o.l = ({ Target: l });
			if(opts.dense) { if(!ws[R + or_R]) ws[R + or_R] = []; ws[R + or_R][C + or_C] = o; }
			else ws[encode_cell({c:C + or_C, r:R + or_R})] = o;
			if(range.e.c < C + or_C) range.e.c = C + or_C;
			C += CS;
		}
		++R;
	}
	if(merges.length) ws['!merges'] = (ws["!merges"] || []).concat(merges);
	range.e.r = Math.max(range.e.r, R - 1 + or_R);
	ws['!ref'] = encode_range(range);
	if(R >= sheetRows) ws['!fullref'] = encode_range((range.e.r = rows.length-_R+R-1 + or_R,range)); // We can count the real number of rows to parse but we don't to improve the performance
	return ws;
}

function parse_dom_table(table, _opts) {
	var opts = _opts || {};
	var ws = opts.dense ? ([]) : ({});
	return sheet_add_dom(ws, table, _opts);
}

function table_to_book(table, opts) {
	return sheet_to_workbook(parse_dom_table(table, opts), opts);
}

function is_dom_element_hidden(element) {
	var display = '';
	var get_computed_style = get_get_computed_style_function(element);
	if(get_computed_style) display = get_computed_style(element).getPropertyValue('display');
	if(!display) display = element.style && element.style.display;
	return display === 'none';
}

/* global getComputedStyle */
function get_get_computed_style_function(element) {
	// The proper getComputedStyle implementation is the one defined in the element window
	if(element.ownerDocument.defaultView && typeof element.ownerDocument.defaultView.getComputedStyle === 'function') return element.ownerDocument.defaultView.getComputedStyle;
	// If it is not available, try to get one from the global namespace
	if(typeof getComputedStyle === 'function') return getComputedStyle;
	return null;
}
/* OpenDocument */
function parse_text_p(text) {
	/* 6.1.2 White Space Characters */
	var fixed = text
		.replace(/[\t\r\n]/g, " ").trim().replace(/ +/g, " ")
		.replace(/<text:s\/>/g," ")
		.replace(/<text:s text:c="(\d+)"\/>/g, function($$,$1) { return Array(parseInt($1,10)+1).join(" "); })
		.replace(/<text:tab[^>]*\/>/g,"\t")
		.replace(/<text:line-break\/>/g,"\n");
	var v = unescapexml(fixed.replace(/<[^>]*>/g,""));

	return [v];
}

var number_formats_ods = {
	/* ods name: [short ssf fmt, long ssf fmt] */
	day:           ["d",   "dd"],
	month:         ["m",   "mm"],
	year:          ["y",   "yy"],
	hours:         ["h",   "hh"],
	minutes:       ["m",   "mm"],
	seconds:       ["s",   "ss"],
	"am-pm":       ["A/P", "AM/PM"],
	"day-of-week": ["ddd", "dddd"],
	era:           ["e",   "ee"],
	/* there is no native representation of LO "Q" format */
	quarter:       ["\\Qm", "m\\\"th quarter\""]
};


function parse_content_xml(d, _opts) {
		var opts = _opts || {};
		if(DENSE != null && opts.dense == null) opts.dense = DENSE;
		var str = xlml_normalize(d);
		var state = [], tmp;
		var tag;
		var NFtag = {name:""}, NF = "", pidx = 0;
		var sheetag;
		var rowtag;
		var Sheets = {}, SheetNames = [];
		var ws = opts.dense ? ([]) : ({});
		var Rn, q;
		var ctag = ({value:""});
		var textp = "", textpidx = 0, textptag;
		var textR = [];
		var R = -1, C = -1, range = {s: {r:1000000,c:10000000}, e: {r:0, c:0}};
		var row_ol = 0;
		var number_format_map = {};
		var merges = [], mrange = {}, mR = 0, mC = 0;
		var rowinfo = [], rowpeat = 1, colpeat = 1;
		var arrayf = [];
		var WB = {Names:[]};
		var atag = ({});
		var _Ref = ["", ""];
		var comments = [], comment = ({});
		var creator = "", creatoridx = 0;
		var isstub = false, intable = false;
		var i = 0;
		xlmlregex.lastIndex = 0;
		str = str.replace(/<!--([\s\S]*?)-->/mg,"").replace(/<!DOCTYPE[^\[]*\[[^\]]*\]>/gm,"");
		while((Rn = xlmlregex.exec(str))) switch((Rn[3]=Rn[3].replace(/_.*$/,""))) {

			case 'table': case '工作表': // 9.1.2 <table:table>
				if(Rn[1]==='/') {
					if(range.e.c >= range.s.c && range.e.r >= range.s.r) ws['!ref'] = encode_range(range);
					else ws['!ref'] = "A1:A1";
					if(opts.sheetRows > 0 && opts.sheetRows <= range.e.r) {
						ws['!fullref'] = ws['!ref'];
						range.e.r = opts.sheetRows - 1;
						ws['!ref'] = encode_range(range);
					}
					if(merges.length) ws['!merges'] = merges;
					if(rowinfo.length) ws["!rows"] = rowinfo;
					sheetag.name = sheetag['名称'] || sheetag.name;
					if(typeof JSON !== 'undefined') JSON.stringify(sheetag);
					SheetNames.push(sheetag.name);
					Sheets[sheetag.name] = ws;
					intable = false;
				}
				else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
					sheetag = parsexmltag(Rn[0], false);
					R = C = -1;
					range.s.r = range.s.c = 10000000; range.e.r = range.e.c = 0;
					ws = opts.dense ? ([]) : ({}); merges = [];
					rowinfo = [];
					intable = true;
				}
				break;

			case 'table-row-group': // 9.1.9 <table:table-row-group>
				if(Rn[1] === "/") --row_ol; else ++row_ol;
				break;
			case 'table-row': case '行': // 9.1.3 <table:table-row>
				if(Rn[1] === '/') { R+=rowpeat; rowpeat = 1; break; }
				rowtag = parsexmltag(Rn[0], false);
				if(rowtag['行号']) R = rowtag['行号'] - 1; else if(R == -1) R = 0;
				rowpeat = +rowtag['number-rows-repeated'] || 1;
				/* TODO: remove magic */
				if(rowpeat < 10) for(i = 0; i < rowpeat; ++i) if(row_ol > 0) rowinfo[R + i] = {level: row_ol};
				C = -1; break;
			case 'covered-table-cell': // 9.1.5 <table:covered-table-cell>
				if(Rn[1] !== '/') ++C;
				if(opts.sheetStubs) {
					if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = {t:'z'}; }
					else ws[encode_cell({r:R,c:C})] = {t:'z'};
				}
				textp = ""; textR = [];
				break; /* stub */
			case 'table-cell': case '数据':
				if(Rn[0].charAt(Rn[0].length-2) === '/') {
					++C;
					ctag = parsexmltag(Rn[0], false);
					colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
					q = ({t:'z', v:null});
					if(ctag.formula && opts.cellFormula != false) q.f = ods_to_csf_formula(unescapexml(ctag.formula));
					if((ctag['数据类型'] || ctag['value-type']) == "string") {
						q.t = "s"; q.v = unescapexml(ctag['string-value'] || "");
						if(opts.dense) {
							if(!ws[R]) ws[R] = [];
							ws[R][C] = q;
						} else {
							ws[encode_cell({r:R,c:C})] = q;
						}
					}
					C+= colpeat-1;
				} else if(Rn[1]!=='/') {
					++C;
					textp = ""; textpidx = 0; textR = [];
					colpeat = 1;
					var rptR = rowpeat ? R + rowpeat - 1 : R;
					if(C > range.e.c) range.e.c = C;
					if(C < range.s.c) range.s.c = C;
					if(R < range.s.r) range.s.r = R;
					if(rptR > range.e.r) range.e.r = rptR;
					ctag = parsexmltag(Rn[0], false);
					comments = []; comment = ({});
					q = ({t:ctag['数据类型'] || ctag['value-type'], v:null});
					if(opts.cellFormula) {
						if(ctag.formula) ctag.formula = unescapexml(ctag.formula);
						if(ctag['number-matrix-columns-spanned'] && ctag['number-matrix-rows-spanned']) {
							mR = parseInt(ctag['number-matrix-rows-spanned'],10) || 0;
							mC = parseInt(ctag['number-matrix-columns-spanned'],10) || 0;
							mrange = {s: {r:R,c:C}, e:{r:R + mR-1,c:C + mC-1}};
							q.F = encode_range(mrange);
							arrayf.push([mrange, q.F]);
						}
						if(ctag.formula) q.f = ods_to_csf_formula(ctag.formula);
						else for(i = 0; i < arrayf.length; ++i)
							if(R >= arrayf[i][0].s.r && R <= arrayf[i][0].e.r)
								if(C >= arrayf[i][0].s.c && C <= arrayf[i][0].e.c)
									q.F = arrayf[i][1];
					}
					if(ctag['number-columns-spanned'] || ctag['number-rows-spanned']) {
						mR = parseInt(ctag['number-rows-spanned'],10) || 0;
						mC = parseInt(ctag['number-columns-spanned'],10) || 0;
						mrange = {s: {r:R,c:C}, e:{r:R + mR-1,c:C + mC-1}};
						merges.push(mrange);
					}

					/* 19.675.2 table:number-columns-repeated */
					if(ctag['number-columns-repeated']) colpeat = parseInt(ctag['number-columns-repeated'], 10);

					/* 19.385 office:value-type */
					switch(q.t) {
						case 'boolean': q.t = 'b'; q.v = parsexmlbool(ctag['boolean-value']); break;
						case 'float': q.t = 'n'; q.v = parseFloat(ctag.value); break;
						case 'percentage': q.t = 'n'; q.v = parseFloat(ctag.value); break;
						case 'currency': q.t = 'n'; q.v = parseFloat(ctag.value); break;
						case 'date': q.t = 'd'; q.v = parseDate(ctag['date-value']);
							if(!opts.cellDates) { q.t = 'n'; q.v = datenum(q.v); }
							q.z = 'm/d/yy'; break;
						case 'time': q.t = 'n'; q.v = parse_isodur(ctag['time-value'])/86400;
							if(opts.cellDates) { q.t = 'd'; q.v = numdate(q.v); }
							q.z = 'HH:MM:SS'; break;
						case 'number': q.t = 'n'; q.v = parseFloat(ctag['数据数值']); break;
						default:
							if(q.t === 'string' || q.t === 'text' || !q.t) {
								q.t = 's';
								if(ctag['string-value'] != null) { textp = unescapexml(ctag['string-value']); textR = []; }
							} else throw new Error('Unsupported value type ' + q.t);
					}
				} else {
					isstub = false;
					if(q.t === 's') {
						q.v = textp || '';
						if(textR.length) q.R = textR;
						isstub = textpidx == 0;
					}
					if(atag.Target) q.l = atag;
					if(comments.length > 0) { q.c = comments; comments = []; }
					if(textp && opts.cellText !== false) q.w = textp;
					if(isstub) { q.t = "z"; delete q.v; }
					if(!isstub || opts.sheetStubs) {
						if(!(opts.sheetRows && opts.sheetRows <= R)) {
							for(var rpt = 0; rpt < rowpeat; ++rpt) {
								colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
								if(opts.dense) {
									if(!ws[R + rpt]) ws[R + rpt] = [];
									ws[R + rpt][C] = rpt == 0 ? q : dup(q);
									while(--colpeat > 0) ws[R + rpt][C + colpeat] = dup(q);
								} else {
									ws[encode_cell({r:R + rpt,c:C})] = q;
									while(--colpeat > 0) ws[encode_cell({r:R + rpt,c:C + colpeat})] = dup(q);
								}
								if(range.e.c <= C) range.e.c = C;
							}
						}
					}
					colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
					C += colpeat-1; colpeat = 0;
					q = {};
					textp = ""; textR = [];
				}
				atag = ({});
				break; // 9.1.4 <table:table-cell>

			/* pure state */
			case 'document': // TODO: <office:document> is the root for FODS
			case 'document-content': case '电子表格文档': // 3.1.3.2 <office:document-content>
			case 'spreadsheet': case '主体': // 3.7 <office:spreadsheet>
			case 'scripts': // 3.12 <office:scripts>
			case 'styles': // TODO <office:styles>
			case 'font-face-decls': // 3.14 <office:font-face-decls>
			case 'master-styles': // 3.15.4 <office:master-styles> -- relevant for FODS
				if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;}
				else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], true]);
				break;

			case 'annotation': // 14.1 <office:annotation>
				if(Rn[1]==='/'){
					if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;
					comment.t = textp;
					if(textR.length) comment.R = textR;
					comment.a = creator;
					comments.push(comment);
				}
				else if(Rn[0].charAt(Rn[0].length-2) !== '/') {state.push([Rn[3], false]);}
				creator = ""; creatoridx = 0;
				textp = ""; textpidx = 0; textR = [];
				break;

			case 'creator': // 4.3.2.7 <dc:creator>
				if(Rn[1]==='/') { creator = str.slice(creatoridx,Rn.index); }
				else creatoridx = Rn.index + Rn[0].length;
				break;

			/* ignore state */
			case 'meta': case '元数据': // TODO: <office:meta> <uof:元数据> FODS/UOF
			case 'settings': // TODO: <office:settings>
			case 'config-item-set': // TODO: <office:config-item-set>
			case 'config-item-map-indexed': // TODO: <office:config-item-map-indexed>
			case 'config-item-map-entry': // TODO: <office:config-item-map-entry>
			case 'config-item-map-named': // TODO: <office:config-item-map-entry>
			case 'shapes': // 9.2.8 <table:shapes>
			case 'frame': // 10.4.2 <draw:frame>
			case 'text-box': // 10.4.3 <draw:text-box>
			case 'image': // 10.4.4 <draw:image>
			case 'data-pilot-tables': // 9.6.2 <table:data-pilot-tables>
			case 'list-style': // 16.30 <text:list-style>
			case 'form': // 13.13 <form:form>
			case 'dde-links': // 9.8 <table:dde-links>
			case 'event-listeners': // TODO
			case 'chart': // TODO
				if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;}
				else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], false]);
				textp = ""; textpidx = 0; textR = [];
				break;

			case 'scientific-number': // TODO: <number:scientific-number>
				break;
			case 'currency-symbol': // TODO: <number:currency-symbol>
				break;
			case 'currency-style': // TODO: <number:currency-style>
				break;
			case 'number-style': // 16.27.2 <number:number-style>
			case 'percentage-style': // 16.27.9 <number:percentage-style>
			case 'date-style': // 16.27.10 <number:date-style>
			case 'time-style': // 16.27.18 <number:time-style>
				if(Rn[1]==='/'){
					number_format_map[NFtag.name] = NF;
					if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;
				} else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
					NF = "";
					NFtag = parsexmltag(Rn[0], false);
					state.push([Rn[3], true]);
				} break;

			case 'script': break; // 3.13 <office:script>
			case 'libraries': break; // TODO: <ooo:libraries>
			case 'automatic-styles': break; // 3.15.3 <office:automatic-styles>

			case 'default-style': // TODO: <style:default-style>
			case 'page-layout': break; // TODO: <style:page-layout>
			case 'style': // 16.2 <style:style>
				break;
			case 'map': break; // 16.3 <style:map>
			case 'font-face': break; // 16.21 <style:font-face>

			case 'paragraph-properties': break; // 17.6 <style:paragraph-properties>
			case 'table-properties': break; // 17.15 <style:table-properties>
			case 'table-column-properties': break; // 17.16 <style:table-column-properties>
			case 'table-row-properties': break; // 17.17 <style:table-row-properties>
			case 'table-cell-properties': break; // 17.18 <style:table-cell-properties>

			case 'number': // 16.27.3 <number:number>
				switch(state[state.length-1][0]) {
					case 'time-style':
					case 'date-style':
						tag = parsexmltag(Rn[0], false);
						NF += number_formats_ods[Rn[3]][tag.style==='long'?1:0]; break;
				} break;

			case 'fraction': break; // TODO 16.27.6 <number:fraction>

			case 'day': // 16.27.11 <number:day>
			case 'month': // 16.27.12 <number:month>
			case 'year': // 16.27.13 <number:year>
			case 'era': // 16.27.14 <number:era>
			case 'day-of-week': // 16.27.15 <number:day-of-week>
			case 'week-of-year': // 16.27.16 <number:week-of-year>
			case 'quarter': // 16.27.17 <number:quarter>
			case 'hours': // 16.27.19 <number:hours>
			case 'minutes': // 16.27.20 <number:minutes>
			case 'seconds': // 16.27.21 <number:seconds>
			case 'am-pm': // 16.27.22 <number:am-pm>
				switch(state[state.length-1][0]) {
					case 'time-style':
					case 'date-style':
						tag = parsexmltag(Rn[0], false);
						NF += number_formats_ods[Rn[3]][tag.style==='long'?1:0]; break;
				} break;

			case 'boolean-style': break; // 16.27.23 <number:boolean-style>
			case 'boolean': break; // 16.27.24 <number:boolean>
			case 'text-style': break; // 16.27.25 <number:text-style>
			case 'text': // 16.27.26 <number:text>
				if(Rn[0].slice(-2) === "/>") break;
				else if(Rn[1]==="/") switch(state[state.length-1][0]) {
					case 'number-style':
					case 'date-style':
					case 'time-style':
						NF += str.slice(pidx, Rn.index);
						break;
				}
				else pidx = Rn.index + Rn[0].length;
				break;

			case 'named-range': // 9.4.12 <table:named-range>
				tag = parsexmltag(Rn[0], false);
				_Ref = ods_to_csf_3D(tag['cell-range-address']);
				var nrange = ({Name:tag.name, Ref:_Ref[0] + '!' + _Ref[1]});
				if(intable) nrange.Sheet = SheetNames.length;
				WB.Names.push(nrange);
				break;

			case 'text-content': break; // 16.27.27 <number:text-content>
			case 'text-properties': break; // 16.27.27 <style:text-properties>
			case 'embedded-text': break; // 16.27.4 <number:embedded-text>

			case 'body': case '电子表格': break; // 3.3 16.9.6 19.726.3

			case 'forms': break; // 12.25.2 13.2
			case 'table-column': break; // 9.1.6 <table:table-column>
			case 'table-header-rows': break; // 9.1.7 <table:table-header-rows>
			case 'table-rows': break; // 9.1.12 <table:table-rows>
			/* TODO: outline levels */
			case 'table-column-group': break; // 9.1.10 <table:table-column-group>
			case 'table-header-columns': break; // 9.1.11 <table:table-header-columns>
			case 'table-columns': break; // 9.1.12 <table:table-columns>

			case 'null-date': break; // 9.4.2 <table:null-date> TODO: date1904

			case 'graphic-properties': break; // 17.21 <style:graphic-properties>
			case 'calculation-settings': break; // 9.4.1 <table:calculation-settings>
			case 'named-expressions': break; // 9.4.11 <table:named-expressions>
			case 'label-range': break; // 9.4.9 <table:label-range>
			case 'label-ranges': break; // 9.4.10 <table:label-ranges>
			case 'named-expression': break; // 9.4.13 <table:named-expression>
			case 'sort': break; // 9.4.19 <table:sort>
			case 'sort-by': break; // 9.4.20 <table:sort-by>
			case 'sort-groups': break; // 9.4.22 <table:sort-groups>

			case 'tab': break; // 6.1.4 <text:tab>
			case 'line-break': break; // 6.1.5 <text:line-break>
			case 'span': break; // 6.1.7 <text:span>
			case 'p': case '文本串': // 5.1.3 <text:p>
				if(['master-styles'].indexOf(state[state.length-1][0]) > -1) break;
				if(Rn[1]==='/' && (!ctag || !ctag['string-value'])) {
					var ptp = parse_text_p(str.slice(textpidx,Rn.index), textptag);
					textp = (textp.length > 0 ? textp + "\n" : "") + ptp[0];
				} else { textptag = parsexmltag(Rn[0], false); textpidx = Rn.index + Rn[0].length; }
				break; // <text:p>
			case 's': break; // <text:s>

			case 'database-range': // 9.4.15 <table:database-range>
				if(Rn[1]==='/') break;
				try {
					_Ref = ods_to_csf_3D(parsexmltag(Rn[0])['target-range-address']);
					Sheets[_Ref[0]]['!autofilter'] = { ref:_Ref[1] };
				} catch(e) {/* empty */}
				break;

			case 'date': break; // <*:date>

			case 'object': break; // 10.4.6.2 <draw:object>
			case 'title': case '标题': break; // <*:title> OR <uof:标题>
			case 'desc': break; // <*:desc>
			case 'binary-data': break; // 10.4.5 TODO: b64 blob

			/* 9.2 Advanced Tables */
			case 'table-source': break; // 9.2.6
			case 'scenario': break; // 9.2.6

			case 'iteration': break; // 9.4.3 <table:iteration>
			case 'content-validations': break; // 9.4.4 <table:
			case 'content-validation': break; // 9.4.5 <table:
			case 'help-message': break; // 9.4.6 <table:
			case 'error-message': break; // 9.4.7 <table:
			case 'database-ranges': break; // 9.4.14 <table:database-ranges>
			case 'filter': break; // 9.5.2 <table:filter>
			case 'filter-and': break; // 9.5.3 <table:filter-and>
			case 'filter-or': break; // 9.5.4 <table:filter-or>
			case 'filter-condition': break; // 9.5.5 <table:filter-condition>

			case 'list-level-style-bullet': break; // 16.31 <text:
			case 'list-level-style-number': break; // 16.32 <text:
			case 'list-level-properties': break; // 17.19 <style:

			/* 7.3 Document Fields */
			case 'sender-firstname': // 7.3.6.2
			case 'sender-lastname': // 7.3.6.3
			case 'sender-initials': // 7.3.6.4
			case 'sender-title': // 7.3.6.5
			case 'sender-position': // 7.3.6.6
			case 'sender-email': // 7.3.6.7
			case 'sender-phone-private': // 7.3.6.8
			case 'sender-fax': // 7.3.6.9
			case 'sender-company': // 7.3.6.10
			case 'sender-phone-work': // 7.3.6.11
			case 'sender-street': // 7.3.6.12
			case 'sender-city': // 7.3.6.13
			case 'sender-postal-code': // 7.3.6.14
			case 'sender-country': // 7.3.6.15
			case 'sender-state-or-province': // 7.3.6.16
			case 'author-name': // 7.3.7.1
			case 'author-initials': // 7.3.7.2
			case 'chapter': // 7.3.8
			case 'file-name': // 7.3.9
			case 'template-name': // 7.3.9
			case 'sheet-name': // 7.3.9
				break;

			case 'event-listener':
				break;
			/* TODO: FODS Properties */
			case 'initial-creator':
			case 'creation-date':
			case 'print-date':
			case 'generator':
			case 'document-statistic':
			case 'user-defined':
			case 'editing-duration':
			case 'editing-cycles':
				break;

			/* TODO: FODS Config */
			case 'config-item':
				break;

			/* TODO: style tokens */
			case 'page-number': break; // TODO <text:page-number>
			case 'page-count': break; // TODO <text:page-count>
			case 'time': break; // TODO <text:time>

			/* 9.3 Advanced Table Cells */
			case 'cell-range-source': break; // 9.3.1 <table:
			case 'detective': break; // 9.3.2 <table:
			case 'operation': break; // 9.3.3 <table:
			case 'highlighted-range': break; // 9.3.4 <table:

			/* 9.6 Data Pilot Tables <table: */
			case 'data-pilot-table': // 9.6.3
			case 'source-cell-range': // 9.6.5
			case 'source-service': // 9.6.6
			case 'data-pilot-field': // 9.6.7
			case 'data-pilot-level': // 9.6.8
			case 'data-pilot-subtotals': // 9.6.9
			case 'data-pilot-subtotal': // 9.6.10
			case 'data-pilot-members': // 9.6.11
			case 'data-pilot-member': // 9.6.12
			case 'data-pilot-display-info': // 9.6.13
			case 'data-pilot-sort-info': // 9.6.14
			case 'data-pilot-layout-info': // 9.6.15
			case 'data-pilot-field-reference': // 9.6.16
			case 'data-pilot-groups': // 9.6.17
			case 'data-pilot-group': // 9.6.18
			case 'data-pilot-group-member': // 9.6.19
				break;

			/* 10.3 Drawing Shapes */
			case 'rect': // 10.3.2
				break;

			/* 14.6 DDE Connections */
			case 'dde-connection-decls': // 14.6.2 <text:
			case 'dde-connection-decl': // 14.6.3 <text:
			case 'dde-link': // 14.6.4 <table:
			case 'dde-source': // 14.6.5 <office:
				break;

			case 'properties': break; // 13.7 <form:properties>
			case 'property': break; // 13.8 <form:property>

			case 'a': // 6.1.8 hyperlink
				if(Rn[1]!== '/') {
					atag = parsexmltag(Rn[0], false);
					if(!atag.href) break;
					atag.Target = unescapexml(atag.href); delete atag.href;
					if(atag.Target.charAt(0) == "#" && atag.Target.indexOf(".") > -1) {
						_Ref = ods_to_csf_3D(atag.Target.slice(1));
						atag.Target = "#" + _Ref[0] + "!" + _Ref[1];
					} else if(atag.Target.match(/^\.\.[\\\/]/)) atag.Target = atag.Target.slice(3);
				}
				break;

			/* non-standard */
			case 'table-protection': break;
			case 'data-pilot-grand-total': break; // <table:
			case 'office-document-common-attrs': break; // bare
			default: switch(Rn[2]) {
				case 'dc:':       // TODO: properties
				case 'calcext:':  // ignore undocumented extensions
				case 'loext:':    // ignore undocumented extensions
				case 'ooo:':      // ignore undocumented extensions
				case 'chartooo:': // ignore undocumented extensions
				case 'draw:':     // TODO: drawing
				case 'style:':    // TODO: styles
				case 'chart:':    // TODO: charts
				case 'form:':     // TODO: forms
				case 'uof:':      // TODO: uof
				case '表:':       // TODO: uof
				case '字:':       // TODO: uof
					break;
				default: if(opts.WTF) throw new Error(Rn);
			}
		}
		var out = ({
			Sheets: Sheets,
			SheetNames: SheetNames,
			Workbook: WB
		});
		if(opts.bookSheets) delete out.Sheets;
		return out;
}

function parse_ods(zip, opts) {
	opts = opts || ({});
	if(safegetzipfile(zip, 'META-INF/manifest.xml')) parse_manifest(getzipdata(zip, 'META-INF/manifest.xml'), opts);
	var content = getzipstr(zip, 'content.xml');
	if(!content) throw new Error("Missing content.xml in ODS / UOF file");
	var wb = parse_content_xml(utf8read(content), opts);
	if(safegetzipfile(zip, 'meta.xml')) wb.Props = parse_core_props(getzipdata(zip, 'meta.xml'));
	return wb;
}
function parse_fods(data, opts) {
	return parse_content_xml(data, opts);
}

/* OpenDocument */
var write_styles_ods = /* @__PURE__ */(function() {
	var master_styles = [
		'<office:master-styles>',
			'<style:master-page style:name="mp1" style:page-layout-name="mp1">',
				'<style:header/>',
				'<style:header-left style:display="false"/>',
				'<style:footer/>',
				'<style:footer-left style:display="false"/>',
			'</style:master-page>',
		'</office:master-styles>'
	].join("");

	var payload = '<office:document-styles ' + wxt_helper({
		'xmlns:office':   "urn:oasis:names:tc:opendocument:xmlns:office:1.0",
		'xmlns:table':    "urn:oasis:names:tc:opendocument:xmlns:table:1.0",
		'xmlns:style':    "urn:oasis:names:tc:opendocument:xmlns:style:1.0",
		'xmlns:text':     "urn:oasis:names:tc:opendocument:xmlns:text:1.0",
		'xmlns:draw':     "urn:oasis:names:tc:opendocument:xmlns:drawing:1.0",
		'xmlns:fo':       "urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0",
		'xmlns:xlink':    "http://www.w3.org/1999/xlink",
		'xmlns:dc':       "http://purl.org/dc/elements/1.1/",
		'xmlns:number':   "urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0",
		'xmlns:svg':      "urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0",
		'xmlns:of':       "urn:oasis:names:tc:opendocument:xmlns:of:1.2",
		'office:version': "1.2"
	}) + '>' + master_styles + '</office:document-styles>';

	return function wso() {
		return XML_HEADER + payload;
	};
})();
var write_content_ods = /* @__PURE__ */(function() {
	/* 6.1.2 White Space Characters */
	var write_text_p = function(text) {
		return escapexml(text)
			.replace(/  +/g, function($$){return '<text:s text:c="'+$$.length+'"/>';})
			.replace(/\t/g, "<text:tab/>")
			.replace(/\n/g, "</text:p><text:p>")
			.replace(/^ /, "<text:s/>").replace(/ $/, "<text:s/>");
	};

	var null_cell_xml = '          <table:table-cell />\n';
	var covered_cell_xml = '          <table:covered-table-cell/>\n';
	var write_ws = function(ws, wb, i) {
		/* Section 9 Tables */
		var o = [];
		o.push('      <table:table table:name="' + escapexml(wb.SheetNames[i]) + '" table:style-name="ta1">\n');
		var R=0,C=0, range = decode_range(ws['!ref']||"A1");
		var marr = ws['!merges'] || [], mi = 0;
		var dense = Array.isArray(ws);
		if(ws["!cols"]) {
			for(C = 0; C <= range.e.c; ++C) o.push('        <table:table-column' + (ws["!cols"][C] ? ' table:style-name="co' + ws["!cols"][C].ods + '"' : '') + '></table:table-column>\n');
		}
		var H = "", ROWS = ws["!rows"]||[];
		for(R = 0; R < range.s.r; ++R) {
			H = ROWS[R] ? ' table:style-name="ro' + ROWS[R].ods + '"' : "";
			o.push('        <table:table-row' + H + '></table:table-row>\n');
		}
		for(; R <= range.e.r; ++R) {
			H = ROWS[R] ? ' table:style-name="ro' + ROWS[R].ods + '"' : "";
			o.push('        <table:table-row' + H + '>\n');
			for(C=0; C < range.s.c; ++C) o.push(null_cell_xml);
			for(; C <= range.e.c; ++C) {
				var skip = false, ct = {}, textp = "";
				for(mi = 0; mi != marr.length; ++mi) {
					if(marr[mi].s.c > C) continue;
					if(marr[mi].s.r > R) continue;
					if(marr[mi].e.c < C) continue;
					if(marr[mi].e.r < R) continue;
					if(marr[mi].s.c != C || marr[mi].s.r != R) skip = true;
					ct['table:number-columns-spanned'] = (marr[mi].e.c - marr[mi].s.c + 1);
					ct['table:number-rows-spanned'] =    (marr[mi].e.r - marr[mi].s.r + 1);
					break;
				}
				if(skip) { o.push(covered_cell_xml); continue; }
				var ref = encode_cell({r:R, c:C}), cell = dense ? (ws[R]||[])[C]: ws[ref];
				if(cell && cell.f) {
					ct['table:formula'] = escapexml(csf_to_ods_formula(cell.f));
					if(cell.F) {
						if(cell.F.slice(0, ref.length) == ref) {
							var _Fref = decode_range(cell.F);
							ct['table:number-matrix-columns-spanned'] = (_Fref.e.c - _Fref.s.c + 1);
							ct['table:number-matrix-rows-spanned'] =    (_Fref.e.r - _Fref.s.r + 1);
						}
					}
				}
				if(!cell) { o.push(null_cell_xml); continue; }
				switch(cell.t) {
					case 'b':
						textp = (cell.v ? 'TRUE' : 'FALSE');
						ct['office:value-type'] = "boolean";
						ct['office:boolean-value'] = (cell.v ? 'true' : 'false');
						break;
					case 'n':
						textp = (cell.w||String(cell.v||0));
						ct['office:value-type'] = "float";
						ct['office:value'] = (cell.v||0);
						break;
					case 's': case 'str':
						textp = cell.v == null ? "" : cell.v;
						ct['office:value-type'] = "string";
						break;
					case 'd':
						textp = (cell.w||(parseDate(cell.v).toISOString()));
						ct['office:value-type'] = "date";
						ct['office:date-value'] = (parseDate(cell.v).toISOString());
						ct['table:style-name'] = "ce1";
						break;
					//case 'e':
					default: o.push(null_cell_xml); continue;
				}
				var text_p = write_text_p(textp);
				if(cell.l && cell.l.Target) {
					var _tgt = cell.l.Target;
					_tgt = _tgt.charAt(0) == "#" ? "#" + csf_to_ods_3D(_tgt.slice(1)) : _tgt;
					// TODO: choose correct parent path format based on link delimiters
					if(_tgt.charAt(0) != "#" && !_tgt.match(/^\w+:/)) _tgt = '../' + _tgt;
					text_p = writextag('text:a', text_p, {'xlink:href': _tgt.replace(/&/g, "&amp;")});
				}
				o.push('          ' + writextag('table:table-cell', writextag('text:p', text_p, {}), ct) + '\n');
			}
			o.push('        </table:table-row>\n');
		}
		o.push('      </table:table>\n');
		return o.join("");
	};

	var write_automatic_styles_ods = function(o, wb) {
		o.push(' <office:automatic-styles>\n');

		o.push('  <number:date-style style:name="N37" number:automatic-order="true">\n');
		o.push('   <number:month number:style="long"/>\n');
		o.push('   <number:text>/</number:text>\n');
		o.push('   <number:day number:style="long"/>\n');
		o.push('   <number:text>/</number:text>\n');
		o.push('   <number:year/>\n');
		o.push('  </number:date-style>\n');

		/* column styles */
		var cidx = 0;
		wb.SheetNames.map(function(n) { return wb.Sheets[n]; }).forEach(function(ws) {
			if(!ws) return;
			if(ws["!cols"]) {
				for(var C = 0; C < ws["!cols"].length; ++C) if(ws["!cols"][C]) {
					var colobj = ws["!cols"][C];
					if(colobj.width == null && colobj.wpx == null && colobj.wch == null) continue;
					process_col(colobj);
					colobj.ods = cidx;
					var w = ws["!cols"][C].wpx + "px";
					o.push('  <style:style style:name="co' + cidx + '" style:family="table-column">\n');
					o.push('   <style:table-column-properties fo:break-before="auto" style:column-width="' + w + '"/>\n');
					o.push('  </style:style>\n');
					++cidx;
				}
			}
		});

		/* row styles */
		var ridx = 0;
		wb.SheetNames.map(function(n) { return wb.Sheets[n]; }).forEach(function(ws) {
			if(!ws) return;
			if(ws["!rows"]) {
				for(var R = 0; R < ws["!rows"].length; ++R) if(ws["!rows"][R]) {
					ws["!rows"][R].ods = ridx;
					var h = ws["!rows"][R].hpx + "px";
					o.push('  <style:style style:name="ro' + ridx + '" style:family="table-row">\n');
					o.push('   <style:table-row-properties fo:break-before="auto" style:row-height="' + h + '"/>\n');
					o.push('  </style:style>\n');
					++ridx;
				}
			}
		});

		/* table */
		o.push('  <style:style style:name="ta1" style:family="table" style:master-page-name="mp1">\n');
		o.push('   <style:table-properties table:display="true" style:writing-mode="lr-tb"/>\n');
		o.push('  </style:style>\n');

		/* table cells, text */
		o.push('  <style:style style:name="ce1" style:family="table-cell" style:parent-style-name="Default" style:data-style-name="N37"/>\n');

		/* page-layout */

		o.push(' </office:automatic-styles>\n');
	};

	return function wcx(wb, opts) {
		var o = [XML_HEADER];
		/* 3.1.3.2 */
		var attr = wxt_helper({
			'xmlns:office':       "urn:oasis:names:tc:opendocument:xmlns:office:1.0",
			'xmlns:table':        "urn:oasis:names:tc:opendocument:xmlns:table:1.0",
			'xmlns:style':        "urn:oasis:names:tc:opendocument:xmlns:style:1.0",
			'xmlns:text':         "urn:oasis:names:tc:opendocument:xmlns:text:1.0",
			'xmlns:draw':         "urn:oasis:names:tc:opendocument:xmlns:drawing:1.0",
			'xmlns:fo':           "urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0",
			'xmlns:xlink':        "http://www.w3.org/1999/xlink",
			'xmlns:dc':           "http://purl.org/dc/elements/1.1/",
			'xmlns:meta':         "urn:oasis:names:tc:opendocument:xmlns:meta:1.0",
			'xmlns:number':       "urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0",
			'xmlns:presentation': "urn:oasis:names:tc:opendocument:xmlns:presentation:1.0",
			'xmlns:svg':          "urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0",
			'xmlns:chart':        "urn:oasis:names:tc:opendocument:xmlns:chart:1.0",
			'xmlns:dr3d':         "urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0",
			'xmlns:math':         "http://www.w3.org/1998/Math/MathML",
			'xmlns:form':         "urn:oasis:names:tc:opendocument:xmlns:form:1.0",
			'xmlns:script':       "urn:oasis:names:tc:opendocument:xmlns:script:1.0",
			'xmlns:ooo':          "http://openoffice.org/2004/office",
			'xmlns:ooow':         "http://openoffice.org/2004/writer",
			'xmlns:oooc':         "http://openoffice.org/2004/calc",
			'xmlns:dom':          "http://www.w3.org/2001/xml-events",
			'xmlns:xforms':       "http://www.w3.org/2002/xforms",
			'xmlns:xsd':          "http://www.w3.org/2001/XMLSchema",
			'xmlns:xsi':          "http://www.w3.org/2001/XMLSchema-instance",
			'xmlns:sheet':        "urn:oasis:names:tc:opendocument:sh33tjs:1.0",
			'xmlns:rpt':          "http://openoffice.org/2005/report",
			'xmlns:of':           "urn:oasis:names:tc:opendocument:xmlns:of:1.2",
			'xmlns:xhtml':        "http://www.w3.org/1999/xhtml",
			'xmlns:grddl':        "http://www.w3.org/2003/g/data-view#",
			'xmlns:tableooo':     "http://openoffice.org/2009/table",
			'xmlns:drawooo':      "http://openoffice.org/2010/draw",
			'xmlns:calcext':      "urn:org:documentfoundation:names:experimental:calc:xmlns:calcext:1.0",
			'xmlns:loext':        "urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0",
			'xmlns:field':        "urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0",
			'xmlns:formx':        "urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0",
			'xmlns:css3t':        "http://www.w3.org/TR/css3-text/",
			'office:version':     "1.2"
		});

		var fods = wxt_helper({
			'xmlns:config':    "urn:oasis:names:tc:opendocument:xmlns:config:1.0",
			'office:mimetype': "application/vnd.oasis.opendocument.spreadsheet"
		});

		if(opts.bookType == "fods") {
			o.push('<office:document' + attr + fods + '>\n');
			o.push(write_meta_ods().replace(/office:document-meta/g, "office:meta"));
			// TODO: settings (equiv of settings.xml for ODS)
		} else o.push('<office:document-content' + attr  + '>\n');
		// o.push('  <office:scripts/>\n');
		write_automatic_styles_ods(o, wb);
		o.push('  <office:body>\n');
		o.push('    <office:spreadsheet>\n');
		for(var i = 0; i != wb.SheetNames.length; ++i) o.push(write_ws(wb.Sheets[wb.SheetNames[i]], wb, i, opts));
		o.push('    </office:spreadsheet>\n');
		o.push('  </office:body>\n');
		if(opts.bookType == "fods") o.push('</office:document>');
		else o.push('</office:document-content>');
		return o.join("");
	};
})();

function write_ods(wb, opts) {
	if(opts.bookType == "fods") return write_content_ods(wb, opts);

	var zip = zip_new();
	var f = "";

	var manifest = [];
	var rdf = [];

	/* Part 3 Section 3.3 MIME Media Type */
	f = "mimetype";
	zip_add_file(zip, f, "application/vnd.oasis.opendocument.spreadsheet");

	/* Part 1 Section 2.2 Documents */
	f = "content.xml";
	zip_add_file(zip, f, write_content_ods(wb, opts));
	manifest.push([f, "text/xml"]);
	rdf.push([f, "ContentFile"]);

	/* TODO: these are hard-coded styles to satiate excel */
	f = "styles.xml";
	zip_add_file(zip, f, write_styles_ods(wb, opts));
	manifest.push([f, "text/xml"]);
	rdf.push([f, "StylesFile"]);

	/* TODO: this is hard-coded to satiate excel */
	f = "meta.xml";
	zip_add_file(zip, f, XML_HEADER + write_meta_ods());
	manifest.push([f, "text/xml"]);
	rdf.push([f, "MetadataFile"]);

	/* Part 3 Section 6 Metadata Manifest File */
	f = "manifest.rdf";
	zip_add_file(zip, f, write_rdf(rdf/*, opts*/));
	manifest.push([f, "application/rdf+xml"]);

	/* Part 3 Section 4 Manifest File */
	f = "META-INF/manifest.xml";
	zip_add_file(zip, f, write_manifest(manifest/*, opts*/));

	return zip;
}

function fix_opts_func(defaults) {
	return function fix_opts(opts) {
		for(var i = 0; i != defaults.length; ++i) {
			var d = defaults[i];
			if(opts[d[0]] === undefined) opts[d[0]] = d[1];
			if(d[2] === 'n') opts[d[0]] = Number(opts[d[0]]);
		}
	};
}

function fix_read_opts(opts) {
fix_opts_func([
	['cellNF', false], /* emit cell number format string as .z */
	['cellHTML', true], /* emit html string as .h */
	['cellFormula', true], /* emit formulae as .f */
	['cellStyles', false], /* emits style/theme as .s */
	['cellText', true], /* emit formatted text as .w */
	['cellDates', false], /* emit date cells with type `d` */

	['sheetStubs', false], /* emit empty cells */
	['sheetRows', 0, 'n'], /* read n rows (0 = read all rows) */

	['bookDeps', false], /* parse calculation chains */
	['bookSheets', false], /* only try to get sheet names (no Sheets) */
	['bookProps', false], /* only try to get properties (no Sheets) */
	['bookFiles', false], /* include raw file structure (keys, files, cfb) */
	['bookVBA', false], /* include vba raw data (vbaraw) */

	['password',''], /* password */
	['WTF', false] /* WTF mode (throws errors) */
])(opts);
}

function fix_write_opts(opts) {
fix_opts_func([
	['cellDates', false], /* write date cells with type `d` */

	['bookSST', false], /* Generate Shared String Table */

	['bookType', 'xlsx'], /* Type of workbook (xlsx/m/b) */

	['compression', false], /* Use file compression */

	['WTF', false] /* WTF mode (throws errors) */
])(opts);
}
function get_sheet_type(n) {
	if(RELS.WS.indexOf(n) > -1) return "sheet";
	if(RELS.CS && n == RELS.CS) return "chart";
	if(RELS.DS && n == RELS.DS) return "dialog";
	if(RELS.MS && n == RELS.MS) return "macro";
	return (n && n.length) ? n : "sheet";
}
function safe_parse_wbrels(wbrels, sheets) {
	if(!wbrels) return 0;
	try {
		wbrels = sheets.map(function pwbr(w) { if(!w.id) w.id = w.strRelID; return [w.name, wbrels['!id'][w.id].Target, get_sheet_type(wbrels['!id'][w.id].Type)]; });
	} catch(e) { return null; }
	return !wbrels || wbrels.length === 0 ? null : wbrels;
}

function safe_parse_sheet(zip, path, relsPath, sheet, idx, sheetRels, sheets, stype, opts, wb, themes, styles) {
	try {
		sheetRels[sheet]=parse_rels(getzipstr(zip, relsPath, true), path);
		var data = getzipdata(zip, path);
		var _ws;
		switch(stype) {
			case 'sheet':  _ws = parse_ws(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
			case 'chart':  _ws = parse_cs(data, path, idx, opts, sheetRels[sheet], wb, themes, styles);
				if(!_ws || !_ws['!drawel']) break;
				var dfile = resolve_path(_ws['!drawel'].Target, path);
				var drelsp = get_rels_path(dfile);
				var draw = parse_drawing(getzipstr(zip, dfile, true), parse_rels(getzipstr(zip, drelsp, true), dfile));
				var chartp = resolve_path(draw, dfile);
				var crelsp = get_rels_path(chartp);
				_ws = parse_chart(getzipstr(zip, chartp, true), chartp, opts, parse_rels(getzipstr(zip, crelsp, true), chartp), wb, _ws);
				break;
			case 'macro':  _ws = parse_ms(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
			case 'dialog': _ws = parse_ds(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
			default: throw new Error("Unrecognized sheet type " + stype);
		}
		sheets[sheet] = _ws;

		/* scan rels for comments and threaded comments */
		var tcomments = [];
		if(sheetRels && sheetRels[sheet]) keys(sheetRels[sheet]).forEach(function(n) {
			var dfile = "";
			if(sheetRels[sheet][n].Type == RELS.CMNT) {
				dfile = resolve_path(sheetRels[sheet][n].Target, path);
				var comments = parse_cmnt(getzipdata(zip, dfile, true), dfile, opts);
				if(!comments || !comments.length) return;
				sheet_insert_comments(_ws, comments, false);
			}
			if(sheetRels[sheet][n].Type == RELS.TCMNT) {
				dfile = resolve_path(sheetRels[sheet][n].Target, path);
				tcomments = tcomments.concat(parse_tcmnt_xml(getzipdata(zip, dfile, true), opts));
			}
		});
		if(tcomments && tcomments.length) sheet_insert_comments(_ws, tcomments, true, opts.people || []);
	} catch(e) { if(opts.WTF) throw e; }
}

function strip_front_slash(x) { return x.charAt(0) == '/' ? x.slice(1) : x; }

function parse_zip(zip, opts) {
	make_ssf(SSF);
	opts = opts || {};
	fix_read_opts(opts);

	/* OpenDocument Part 3 Section 2.2.1 OpenDocument Package */
	if(safegetzipfile(zip, 'META-INF/manifest.xml')) return parse_ods(zip, opts);
	/* UOC */
	if(safegetzipfile(zip, 'objectdata.xml')) return parse_ods(zip, opts);
	/* Numbers */
	if(safegetzipfile(zip, 'Index/Document.iwa')) {
		if(typeof Uint8Array == "undefined") throw new Error('NUMBERS file parsing requires Uint8Array support');
		if(typeof parse_numbers_iwa != "undefined") {
			if(zip.FileIndex) return parse_numbers_iwa(zip);
			var _zip = CFB.utils.cfb_new();
			zipentries(zip).forEach(function(e) { zip_add_file(_zip, e, getzipbin(zip, e)); });
			return parse_numbers_iwa(_zip);
		}
		throw new Error('Unsupported NUMBERS file');
	}
	if(!safegetzipfile(zip, '[Content_Types].xml')) {
		if(safegetzipfile(zip, 'index.xml.gz')) throw new Error('Unsupported NUMBERS 08 file');
		if(safegetzipfile(zip, 'index.xml')) throw new Error('Unsupported NUMBERS 09 file');
		throw new Error('Unsupported ZIP file');
	}

	var entries = zipentries(zip);
	var dir = parse_ct((getzipstr(zip, '[Content_Types].xml')));
	var xlsb = false;
	var sheets, binname;
	if(dir.workbooks.length === 0) {
		binname = "xl/workbook.xml";
		if(getzipdata(zip,binname, true)) dir.workbooks.push(binname);
	}
	if(dir.workbooks.length === 0) {
		binname = "xl/workbook.bin";
		if(!getzipdata(zip,binname,true)) throw new Error("Could not find workbook");
		dir.workbooks.push(binname);
		xlsb = true;
	}
	if(dir.workbooks[0].slice(-3) == "bin") xlsb = true;

	var themes = ({});
	var styles = ({});
	if(!opts.bookSheets && !opts.bookProps) {
		strs = [];
		if(dir.sst) try { strs=parse_sst(getzipdata(zip, strip_front_slash(dir.sst)), dir.sst, opts); } catch(e) { if(opts.WTF) throw e; }

		if(opts.cellStyles && dir.themes.length) themes = parse_theme(getzipstr(zip, dir.themes[0].replace(/^\//,''), true)||"",dir.themes[0], opts);

		if(dir.style) styles = parse_sty(getzipdata(zip, strip_front_slash(dir.style)), dir.style, themes, opts);
	}

	/*var externbooks = */dir.links.map(function(link) {
		try {
			var rels = parse_rels(getzipstr(zip, get_rels_path(strip_front_slash(link))), link);
			return parse_xlink(getzipdata(zip, strip_front_slash(link)), rels, link, opts);
		} catch(e) {}
	});

	var wb = parse_wb(getzipdata(zip, strip_front_slash(dir.workbooks[0])), dir.workbooks[0], opts);

	var props = {}, propdata = "";

	if(dir.coreprops.length) {
		propdata = getzipdata(zip, strip_front_slash(dir.coreprops[0]), true);
		if(propdata) props = parse_core_props(propdata);
		if(dir.extprops.length !== 0) {
			propdata = getzipdata(zip, strip_front_slash(dir.extprops[0]), true);
			if(propdata) parse_ext_props(propdata, props, opts);
		}
	}

	var custprops = {};
	if(!opts.bookSheets || opts.bookProps) {
		if (dir.custprops.length !== 0) {
			propdata = getzipstr(zip, strip_front_slash(dir.custprops[0]), true);
			if(propdata) custprops = parse_cust_props(propdata, opts);
		}
	}

	var out = ({});
	if(opts.bookSheets || opts.bookProps) {
		if(wb.Sheets) sheets = wb.Sheets.map(function pluck(x){ return x.name; });
		else if(props.Worksheets && props.SheetNames.length > 0) sheets=props.SheetNames;
		if(opts.bookProps) { out.Props = props; out.Custprops = custprops; }
		if(opts.bookSheets && typeof sheets !== 'undefined') out.SheetNames = sheets;
		if(opts.bookSheets ? out.SheetNames : opts.bookProps) return out;
	}
	sheets = {};

	var deps = {};
	if(opts.bookDeps && dir.calcchain) deps=parse_cc(getzipdata(zip, strip_front_slash(dir.calcchain)),dir.calcchain,opts);

	var i=0;
	var sheetRels = ({});
	var path, relsPath;

	{
		var wbsheets = wb.Sheets;
		props.Worksheets = wbsheets.length;
		props.SheetNames = [];
		for(var j = 0; j != wbsheets.length; ++j) {
			props.SheetNames[j] = wbsheets[j].name;
		}
	}

	var wbext = xlsb ? "bin" : "xml";
	var wbrelsi = dir.workbooks[0].lastIndexOf("/");
	var wbrelsfile = (dir.workbooks[0].slice(0, wbrelsi+1) + "_rels/" + dir.workbooks[0].slice(wbrelsi+1) + ".rels").replace(/^\//,"");
	if(!safegetzipfile(zip, wbrelsfile)) wbrelsfile = 'xl/_rels/workbook.' + wbext + '.rels';
	var wbrels = parse_rels(getzipstr(zip, wbrelsfile, true), wbrelsfile.replace(/_rels.*/, "s5s"));

	if((dir.metadata || []).length >= 1) {
		/* TODO: MDX and other types of metadata */
		opts.xlmeta = parse_xlmeta(getzipdata(zip, strip_front_slash(dir.metadata[0])),dir.metadata[0],opts);
	}

	if((dir.people || []).length >= 1) {
		opts.people = parse_people_xml(getzipdata(zip, strip_front_slash(dir.people[0])),opts);
	}

	if(wbrels) wbrels = safe_parse_wbrels(wbrels, wb.Sheets);

	/* Numbers iOS hack */
	var nmode = (getzipdata(zip,"xl/worksheets/sheet.xml",true))?1:0;
	wsloop: for(i = 0; i != props.Worksheets; ++i) {
		var stype = "sheet";
		if(wbrels && wbrels[i]) {
			path = 'xl/' + (wbrels[i][1]).replace(/[\/]?xl\//, "");
			if(!safegetzipfile(zip, path)) path = wbrels[i][1];
			if(!safegetzipfile(zip, path)) path = wbrelsfile.replace(/_rels\/.*$/,"") + wbrels[i][1];
			stype = wbrels[i][2];
		} else {
			path = 'xl/worksheets/sheet'+(i+1-nmode)+"." + wbext;
			path = path.replace(/sheet0\./,"sheet.");
		}
		relsPath = path.replace(/^(.*)(\/)([^\/]*)$/, "$1/_rels/$3.rels");
		if(opts && opts.sheets != null) switch(typeof opts.sheets) {
			case "number": if(i != opts.sheets) continue wsloop; break;
			case "string": if(props.SheetNames[i].toLowerCase() != opts.sheets.toLowerCase()) continue wsloop; break;
			default: if(Array.isArray && Array.isArray(opts.sheets)) {
				var snjseen = false;
				for(var snj = 0; snj != opts.sheets.length; ++snj) {
					if(typeof opts.sheets[snj] == "number" && opts.sheets[snj] == i) snjseen=1;
					if(typeof opts.sheets[snj] == "string" && opts.sheets[snj].toLowerCase() == props.SheetNames[i].toLowerCase()) snjseen = 1;
				}
				if(!snjseen) continue wsloop;
			}
		}
		safe_parse_sheet(zip, path, relsPath, props.SheetNames[i], i, sheetRels, sheets, stype, opts, wb, themes, styles);
	}

	out = ({
		Directory: dir,
		Workbook: wb,
		Props: props,
		Custprops: custprops,
		Deps: deps,
		Sheets: sheets,
		SheetNames: props.SheetNames,
		Strings: strs,
		Styles: styles,
		Themes: themes,
		SSF: SSF.get_table()
	});
	if(opts && opts.bookFiles) {
		if(zip.files) {
			out.keys = entries;
			out.files = zip.files;
		} else {
			out.keys = [];
			out.files = {};
			zip.FullPaths.forEach(function(p, idx) {
				p = p.replace(/^Root Entry[\/]/, "");
				out.keys.push(p);
				out.files[p] = zip.FileIndex[idx];
			});
		}
	}
	if(opts && opts.bookVBA) {
		if(dir.vba.length > 0) out.vbaraw = getzipdata(zip,strip_front_slash(dir.vba[0]),true);
		else if(dir.defaults && dir.defaults.bin === CT_VBA) out.vbaraw = getzipdata(zip, 'xl/vbaProject.bin',true);
	}
	return out;
}

/* [MS-OFFCRYPTO] 2.1.1 */
function parse_xlsxcfb(cfb, _opts) {
	var opts = _opts || {};
	var f = 'Workbook', data = CFB.find(cfb, f);
	try {
	f = '/!DataSpaces/Version';
	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
	/*var version = */parse_DataSpaceVersionInfo(data.content);

	/* 2.3.4.1 */
	f = '/!DataSpaces/DataSpaceMap';
	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
	var dsm = parse_DataSpaceMap(data.content);
	if(dsm.length !== 1 || dsm[0].comps.length !== 1 || dsm[0].comps[0].t !== 0 || dsm[0].name !== "StrongEncryptionDataSpace" || dsm[0].comps[0].v !== "EncryptedPackage")
		throw new Error("ECMA-376 Encrypted file bad " + f);

	/* 2.3.4.2 */
	f = '/!DataSpaces/DataSpaceInfo/StrongEncryptionDataSpace';
	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
	var seds = parse_DataSpaceDefinition(data.content);
	if(seds.length != 1 || seds[0] != "StrongEncryptionTransform")
		throw new Error("ECMA-376 Encrypted file bad " + f);

	/* 2.3.4.3 */
	f = '/!DataSpaces/TransformInfo/StrongEncryptionTransform/!Primary';
	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
	/*var hdr = */parse_Primary(data.content);
	} catch(e) {}

	f = '/EncryptionInfo';
	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
	var einfo = parse_EncryptionInfo(data.content);

	/* 2.3.4.4 */
	f = '/EncryptedPackage';
	data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);

/*global decrypt_agile */
if(einfo[0] == 0x04 && typeof decrypt_agile !== 'undefined') return decrypt_agile(einfo[1], data.content, opts.password || "", opts);
/*global decrypt_std76 */
if(einfo[0] == 0x02 && typeof decrypt_std76 !== 'undefined') return decrypt_std76(einfo[1], data.content, opts.password || "", opts);
	throw new Error("File is password-protected");
}

function write_zip(wb, opts) {
	if(opts.bookType == "ods") return write_ods(wb, opts);
	if(opts.bookType == "xlsb") return write_zip_xlsxb(wb, opts);
	return write_zip_xlsx(wb, opts);
}

/* XLSX and XLSB writing are very similar.  Originally they were unified in one
   export function.  This is horrible for tree shaking in the common case (most
   applications need to export files in one format) so this function supports
   both formats while write_zip_xlsx only handles XLSX */
function write_zip_xlsxb(wb, opts) {
	_shapeid = 1024;
	if(wb && !wb.SSF) {
		wb.SSF = SSF.get_table();
	}
	if(wb && wb.SSF) {
		make_ssf(SSF); SSF.load_table(wb.SSF);
		// $FlowIgnore
		opts.revssf = evert_num(wb.SSF); opts.revssf[wb.SSF[65535]] = 0;
		opts.ssf = wb.SSF;
	}
	opts.rels = {}; opts.wbrels = {};
	opts.Strings = []; opts.Strings.Count = 0; opts.Strings.Unique = 0;
	if(browser_has_Map) opts.revStrings = new Map();
	else { opts.revStrings = {}; opts.revStrings.foo = []; delete opts.revStrings.foo; }
	var wbext = opts.bookType == "xlsb" ? "bin" : "xml";
	var vbafmt = VBAFMTS.indexOf(opts.bookType) > -1;
	var ct = new_ct();
	fix_write_opts(opts = opts || {});
	var zip = zip_new();
	var f = "", rId = 0;

	opts.cellXfs = [];
	get_cell_style(opts.cellXfs, {}, {revssf:{"General":0}});

	if(!wb.Props) wb.Props = {};

	f = "docProps/core.xml";
	zip_add_file(zip, f, write_core_props(wb.Props, opts));
	ct.coreprops.push(f);
	add_rels(opts.rels, 2, f, RELS.CORE_PROPS);

f = "docProps/app.xml";
	if(wb.Props && wb.Props.SheetNames){/* empty */}
	else if(!wb.Workbook || !wb.Workbook.Sheets) wb.Props.SheetNames = wb.SheetNames;
	else {
		var _sn = [];
		for(var _i = 0; _i < wb.SheetNames.length; ++_i)
			if((wb.Workbook.Sheets[_i]||{}).Hidden != 2) _sn.push(wb.SheetNames[_i]);
		wb.Props.SheetNames = _sn;
	}
	wb.Props.Worksheets = wb.Props.SheetNames.length;
	zip_add_file(zip, f, write_ext_props(wb.Props, opts));
	ct.extprops.push(f);
	add_rels(opts.rels, 3, f, RELS.EXT_PROPS);

	if(wb.Custprops !== wb.Props && keys(wb.Custprops||{}).length > 0) {
		f = "docProps/custom.xml";
		zip_add_file(zip, f, write_cust_props(wb.Custprops, opts));
		ct.custprops.push(f);
		add_rels(opts.rels, 4, f, RELS.CUST_PROPS);
	}

	for(rId=1;rId <= wb.SheetNames.length; ++rId) {
		var wsrels = {'!id':{}};
		var ws = wb.Sheets[wb.SheetNames[rId-1]];
		var _type = (ws || {})["!type"] || "sheet";
		switch(_type) {
		case "chart":
			/* falls through */
		default:
			f = "xl/worksheets/sheet" + rId + "." + wbext;
			zip_add_file(zip, f, write_ws(rId-1, f, opts, wb, wsrels));
			ct.sheets.push(f);
			add_rels(opts.wbrels, -1, "worksheets/sheet" + rId + "." + wbext, RELS.WS[0]);
		}

		if(ws) {
			var comments = ws['!comments'];
			var need_vml = false;
			var cf = "";
			if(comments && comments.length > 0) {
				cf = "xl/comments" + rId + "." + wbext;
				zip_add_file(zip, cf, write_cmnt(comments, cf, opts));
				ct.comments.push(cf);
				add_rels(wsrels, -1, "../comments" + rId + "." + wbext, RELS.CMNT);
				need_vml = true;
			}
			if(ws['!legacy']) {
				if(need_vml) zip_add_file(zip, "xl/drawings/vmlDrawing" + (rId) + ".vml", write_comments_vml(rId, ws['!comments']));
			}
			delete ws['!comments'];
			delete ws['!legacy'];
		}

		if(wsrels['!id'].rId1) zip_add_file(zip, get_rels_path(f), write_rels(wsrels));
	}

	if(opts.Strings != null && opts.Strings.length > 0) {
		f = "xl/sharedStrings." + wbext;
		zip_add_file(zip, f, write_sst(opts.Strings, f, opts));
		ct.strs.push(f);
		add_rels(opts.wbrels, -1, "sharedStrings." + wbext, RELS.SST);
	}

	f = "xl/workbook." + wbext;
	zip_add_file(zip, f, write_wb(wb, f, opts));
	ct.workbooks.push(f);
	add_rels(opts.rels, 1, f, RELS.WB);

	/* TODO: something more intelligent with themes */

	f = "xl/theme/theme1.xml";
	zip_add_file(zip, f, write_theme(wb.Themes, opts));
	ct.themes.push(f);
	add_rels(opts.wbrels, -1, "theme/theme1.xml", RELS.THEME);

	/* TODO: something more intelligent with styles */

	f = "xl/styles." + wbext;
	zip_add_file(zip, f, write_sty(wb, f, opts));
	ct.styles.push(f);
	add_rels(opts.wbrels, -1, "styles." + wbext, RELS.STY);

	if(wb.vbaraw && vbafmt) {
		f = "xl/vbaProject.bin";
		zip_add_file(zip, f, wb.vbaraw);
		ct.vba.push(f);
		add_rels(opts.wbrels, -1, "vbaProject.bin", RELS.VBA);
	}

	f = "xl/metadata." + wbext;
	zip_add_file(zip, f, write_xlmeta(f));
	ct.metadata.push(f);
	add_rels(opts.wbrels, -1, "metadata." + wbext, RELS.XLMETA);

	zip_add_file(zip, "[Content_Types].xml", write_ct(ct, opts));
	zip_add_file(zip, '_rels/.rels', write_rels(opts.rels));
	zip_add_file(zip, 'xl/_rels/workbook.' + wbext + '.rels', write_rels(opts.wbrels));

	delete opts.revssf; delete opts.ssf;
	return zip;
}

function write_zip_xlsx(wb, opts) {
	_shapeid = 1024;
	if(wb && !wb.SSF) {
		wb.SSF = SSF.get_table();
	}
	if(wb && wb.SSF) {
		make_ssf(SSF); SSF.load_table(wb.SSF);
		// $FlowIgnore
		opts.revssf = evert_num(wb.SSF); opts.revssf[wb.SSF[65535]] = 0;
		opts.ssf = wb.SSF;
	}
	opts.rels = {}; opts.wbrels = {};
	opts.Strings = []; opts.Strings.Count = 0; opts.Strings.Unique = 0;
	if(browser_has_Map) opts.revStrings = new Map();
	else { opts.revStrings = {}; opts.revStrings.foo = []; delete opts.revStrings.foo; }
	var wbext = "xml";
	var vbafmt = VBAFMTS.indexOf(opts.bookType) > -1;
	var ct = new_ct();
	fix_write_opts(opts = opts || {});
	var zip = zip_new();
	var f = "", rId = 0;

	opts.cellXfs = [];
	get_cell_style(opts.cellXfs, {}, {revssf:{"General":0}});

	if(!wb.Props) wb.Props = {};

	f = "docProps/core.xml";
	zip_add_file(zip, f, write_core_props(wb.Props, opts));
	ct.coreprops.push(f);
	add_rels(opts.rels, 2, f, RELS.CORE_PROPS);

f = "docProps/app.xml";
	if(wb.Props && wb.Props.SheetNames){/* empty */}
	else if(!wb.Workbook || !wb.Workbook.Sheets) wb.Props.SheetNames = wb.SheetNames;
	else {
		var _sn = [];
		for(var _i = 0; _i < wb.SheetNames.length; ++_i)
			if((wb.Workbook.Sheets[_i]||{}).Hidden != 2) _sn.push(wb.SheetNames[_i]);
		wb.Props.SheetNames = _sn;
	}
	wb.Props.Worksheets = wb.Props.SheetNames.length;
	zip_add_file(zip, f, write_ext_props(wb.Props, opts));
	ct.extprops.push(f);
	add_rels(opts.rels, 3, f, RELS.EXT_PROPS);

	if(wb.Custprops !== wb.Props && keys(wb.Custprops||{}).length > 0) {
		f = "docProps/custom.xml";
		zip_add_file(zip, f, write_cust_props(wb.Custprops, opts));
		ct.custprops.push(f);
		add_rels(opts.rels, 4, f, RELS.CUST_PROPS);
	}

	var people = ["SheetJ5"];
	opts.tcid = 0;

	for(rId=1;rId <= wb.SheetNames.length; ++rId) {
		var wsrels = {'!id':{}};
		var ws = wb.Sheets[wb.SheetNames[rId-1]];
		var _type = (ws || {})["!type"] || "sheet";
		switch(_type) {
		case "chart":
			/* falls through */
		default:
			f = "xl/worksheets/sheet" + rId + "." + wbext;
			zip_add_file(zip, f, write_ws_xml(rId-1, opts, wb, wsrels));
			ct.sheets.push(f);
			add_rels(opts.wbrels, -1, "worksheets/sheet" + rId + "." + wbext, RELS.WS[0]);
		}

		if(ws) {
			var comments = ws['!comments'];
			var need_vml = false;
			var cf = "";
			if(comments && comments.length > 0) {
				var needtc = false;
				comments.forEach(function(carr) {
					carr[1].forEach(function(c) { if(c.T == true) needtc = true; });
				});
				if(needtc) {
					cf = "xl/threadedComments/threadedComment" + rId + "." + wbext;
					zip_add_file(zip, cf, write_tcmnt_xml(comments, people, opts));
					ct.threadedcomments.push(cf);
					add_rels(wsrels, -1, "../threadedComments/threadedComment" + rId + "." + wbext, RELS.TCMNT);
				}

				cf = "xl/comments" + rId + "." + wbext;
				zip_add_file(zip, cf, write_comments_xml(comments, opts));
				ct.comments.push(cf);
				add_rels(wsrels, -1, "../comments" + rId + "." + wbext, RELS.CMNT);
				need_vml = true;
			}
			if(ws['!legacy']) {
				if(need_vml) zip_add_file(zip, "xl/drawings/vmlDrawing" + (rId) + ".vml", write_comments_vml(rId, ws['!comments']));
			}
			delete ws['!comments'];
			delete ws['!legacy'];
		}

		if(wsrels['!id'].rId1) zip_add_file(zip, get_rels_path(f), write_rels(wsrels));
	}

	if(opts.Strings != null && opts.Strings.length > 0) {
		f = "xl/sharedStrings." + wbext;
		zip_add_file(zip, f, write_sst_xml(opts.Strings, opts));
		ct.strs.push(f);
		add_rels(opts.wbrels, -1, "sharedStrings." + wbext, RELS.SST);
	}

	f = "xl/workbook." + wbext;
	zip_add_file(zip, f, write_wb_xml(wb, opts));
	ct.workbooks.push(f);
	add_rels(opts.rels, 1, f, RELS.WB);

	/* TODO: something more intelligent with themes */

	f = "xl/theme/theme1.xml";
	zip_add_file(zip, f, write_theme(wb.Themes, opts));
	ct.themes.push(f);
	add_rels(opts.wbrels, -1, "theme/theme1.xml", RELS.THEME);

	/* TODO: something more intelligent with styles */

	f = "xl/styles." + wbext;
	zip_add_file(zip, f, write_sty_xml(wb, opts));
	ct.styles.push(f);
	add_rels(opts.wbrels, -1, "styles." + wbext, RELS.STY);

	if(wb.vbaraw && vbafmt) {
		f = "xl/vbaProject.bin";
		zip_add_file(zip, f, wb.vbaraw);
		ct.vba.push(f);
		add_rels(opts.wbrels, -1, "vbaProject.bin", RELS.VBA);
	}

	f = "xl/metadata." + wbext;
	zip_add_file(zip, f, write_xlmeta_xml());
	ct.metadata.push(f);
	add_rels(opts.wbrels, -1, "metadata." + wbext, RELS.XLMETA);

	if(people.length > 1) {
		f = "xl/persons/person.xml";
		zip_add_file(zip, f, write_people_xml(people, opts));
		ct.people.push(f);
		add_rels(opts.wbrels, -1, "persons/person.xml", RELS.PEOPLE);
	}

	zip_add_file(zip, "[Content_Types].xml", write_ct(ct, opts));
	zip_add_file(zip, '_rels/.rels', write_rels(opts.rels));
	zip_add_file(zip, 'xl/_rels/workbook.' + wbext + '.rels', write_rels(opts.wbrels));

	delete opts.revssf; delete opts.ssf;
	return zip;
}

function firstbyte(f,o) {
	var x = "";
	switch((o||{}).type || "base64") {
		case 'buffer': return [f[0], f[1], f[2], f[3], f[4], f[5], f[6], f[7]];
		case 'base64': x = Base64.decode(f.slice(0,12)); break;
		case 'binary': x = f; break;
		case 'array':  return [f[0], f[1], f[2], f[3], f[4], f[5], f[6], f[7]];
		default: throw new Error("Unrecognized type " + (o && o.type || "undefined"));
	}
	return [x.charCodeAt(0), x.charCodeAt(1), x.charCodeAt(2), x.charCodeAt(3), x.charCodeAt(4), x.charCodeAt(5), x.charCodeAt(6), x.charCodeAt(7)];
}

function read_cfb(cfb, opts) {
	if(CFB.find(cfb, "EncryptedPackage")) return parse_xlsxcfb(cfb, opts);
	return parse_xlscfb(cfb, opts);
}

function read_zip(data, opts) {
	var zip, d = data;
	var o = opts||{};
	if(!o.type) o.type = (has_buf && Buffer.isBuffer(data)) ? "buffer" : "base64";
	zip = zip_read(d, o);
	return parse_zip(zip, o);
}

function read_plaintext(data, o) {
	var i = 0;
	main: while(i < data.length) switch(data.charCodeAt(i)) {
		case 0x0A: case 0x0D: case 0x20: ++i; break;
		case 0x3C: return parse_xlml(data.slice(i),o);
		default: break main;
	}
	return PRN.to_workbook(data, o);
}

function read_plaintext_raw(data, o) {
	var str = "", bytes = firstbyte(data, o);
	switch(o.type) {
		case 'base64': str = Base64.decode(data); break;
		case 'binary': str = data; break;
		case 'buffer': str = data.toString('binary'); break;
		case 'array': str = cc2str(data); break;
		default: throw new Error("Unrecognized type " + o.type);
	}
	if(bytes[0] == 0xEF && bytes[1] == 0xBB && bytes[2] == 0xBF) str = utf8read(str);
	o.type = "binary";
	return read_plaintext(str, o);
}

function read_utf16(data, o) {
	var d = data;
	if(o.type == 'base64') d = Base64.decode(d);
	d = $cptable.utils.decode(1200, d.slice(2), 'str');
	o.type = "binary";
	return read_plaintext(d, o);
}

function bstrify(data) {
	return !data.match(/[^\x00-\x7F]/) ? data : utf8write(data);
}

function read_prn(data, d, o, str) {
	if(str) { o.type = "string"; return PRN.to_workbook(data, o); }
	return PRN.to_workbook(d, o);
}

function readSync(data, opts) {
	reset_cp();
	var o = opts||{};
	if(typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) return readSync(new Uint8Array(data), (o = dup(o), o.type = "array", o));
	if(typeof Uint8Array !== 'undefined' && data instanceof Uint8Array && !o.type) o.type = typeof Deno !== "undefined" ? "buffer" : "array";
	var d = data, n = [0,0,0,0], str = false;
	if(o.cellStyles) { o.cellNF = true; o.sheetStubs = true; }
	_ssfopts = {};
	if(o.dateNF) _ssfopts.dateNF = o.dateNF;
	if(!o.type) o.type = (has_buf && Buffer.isBuffer(data)) ? "buffer" : "base64";
	if(o.type == "file") { o.type = has_buf ? "buffer" : "binary"; d = read_binary(data); if(typeof Uint8Array !== 'undefined' && !has_buf) o.type = "array"; }
	if(o.type == "string") { str = true; o.type = "binary"; o.codepage = 65001; d = bstrify(data); }
	if(o.type == 'array' && typeof Uint8Array !== 'undefined' && data instanceof Uint8Array && typeof ArrayBuffer !== 'undefined') {
		// $FlowIgnore
		var ab=new ArrayBuffer(3), vu=new Uint8Array(ab); vu.foo="bar";
		// $FlowIgnore
		if(!vu.foo) {o=dup(o); o.type='array'; return readSync(ab2a(d), o);}
	}
	switch((n = firstbyte(d, o))[0]) {
		case 0xD0: if(n[1] === 0xCF && n[2] === 0x11 && n[3] === 0xE0 && n[4] === 0xA1 && n[5] === 0xB1 && n[6] === 0x1A && n[7] === 0xE1) return read_cfb(CFB.read(d, o), o); break;
		case 0x09: if(n[1] <= 0x08) return parse_xlscfb(d, o); break;
		case 0x3C: return parse_xlml(d, o);
		case 0x49:
			if(n[1] === 0x49 && n[2] === 0x2a && n[3] === 0x00) throw new Error("TIFF Image File is not a spreadsheet");
			if(n[1] === 0x44) return read_wb_ID(d, o);
			break;
		case 0x54: if(n[1] === 0x41 && n[2] === 0x42 && n[3] === 0x4C) return DIF.to_workbook(d, o); break;
		case 0x50: return (n[1] === 0x4B && n[2] < 0x09 && n[3] < 0x09) ? read_zip(d, o) : read_prn(data, d, o, str);
		case 0xEF: return n[3] === 0x3C ? parse_xlml(d, o) : read_prn(data, d, o, str);
		case 0xFF:
			if(n[1] === 0xFE) { return read_utf16(d, o); }
			else if(n[1] === 0x00 && n[2] === 0x02 && n[3] === 0x00) return WK_.to_workbook(d, o);
			break;
		case 0x00:
			if(n[1] === 0x00) {
				if(n[2] >= 0x02 && n[3] === 0x00) return WK_.to_workbook(d, o);
				if(n[2] === 0x00 && (n[3] === 0x08 || n[3] === 0x09)) return WK_.to_workbook(d, o);
			}
			break;
		case 0x03: case 0x83: case 0x8B: case 0x8C: return DBF.to_workbook(d, o);
		case 0x7B: if(n[1] === 0x5C && n[2] === 0x72 && n[3] === 0x74) return RTF.to_workbook(d, o); break;
		case 0x0A: case 0x0D: case 0x20: return read_plaintext_raw(d, o);
		case 0x89: if(n[1] === 0x50 && n[2] === 0x4E && n[3] === 0x47) throw new Error("PNG Image File is not a spreadsheet"); break;
	}
	if(DBF_SUPPORTED_VERSIONS.indexOf(n[0]) > -1 && n[2] <= 12 && n[3] <= 31) return DBF.to_workbook(d, o);
	return read_prn(data, d, o, str);
}

function readFileSync(filename, opts) {
	var o = opts||{}; o.type = 'file';
	return readSync(filename, o);
}
function write_cfb_ctr(cfb, o) {
	switch(o.type) {
		case "base64": case "binary": break;
		case "buffer": case "array": o.type = ""; break;
		case "file": return write_dl(o.file, CFB.write(cfb, {type:has_buf ? 'buffer' : ""}));
		case "string": throw new Error("'string' output type invalid for '" + o.bookType + "' files");
		default: throw new Error("Unrecognized type " + o.type);
	}
	return CFB.write(cfb, o);
}

function write_zip_type(wb, opts) {
	var o = dup(opts||{});
	var z = write_zip(wb, o);
	return write_zip_denouement(z, o);
}
function write_zip_typeXLSX(wb, opts) {
	var o = dup(opts||{});
	var z = write_zip_xlsx(wb, o);
	return write_zip_denouement(z, o);
}
function write_zip_denouement(z, o) {
	var oopts = {};
	var ftype = has_buf ? "nodebuffer" : (typeof Uint8Array !== "undefined" ? "array" : "string");
	if(o.compression) oopts.compression = 'DEFLATE';
	if(o.password) oopts.type = ftype;
	else switch(o.type) {
		case "base64": oopts.type = "base64"; break;
		case "binary": oopts.type = "string"; break;
		case "string": throw new Error("'string' output type invalid for '" + o.bookType + "' files");
		case "buffer":
		case "file": oopts.type = ftype; break;
		default: throw new Error("Unrecognized type " + o.type);
	}
	var out = z.FullPaths ? CFB.write(z, {fileType:"zip", type: {"nodebuffer": "buffer", "string": "binary"}[oopts.type] || oopts.type, compression: !!o.compression}) : z.generate(oopts);
	if(typeof Deno !== "undefined") {
		if(typeof out == "string") {
			if(o.type == "binary" || o.type == "base64") return out;
			out = new Uint8Array(s2ab(out));
		}
	}
/*jshint -W083 */
	if(o.password && typeof encrypt_agile !== 'undefined') return write_cfb_ctr(encrypt_agile(out, o.password), o); // eslint-disable-line no-undef
/*jshint +W083 */
	if(o.type === "file") return write_dl(o.file, out);
	return o.type == "string" ? utf8read(out) : out;
}

function write_cfb_type(wb, opts) {
	var o = opts||{};
	var cfb = write_xlscfb(wb, o);
	return write_cfb_ctr(cfb, o);
}

function write_string_type(out, opts, bom) {
	if(!bom) bom = "";
	var o = bom + out;
	switch(opts.type) {
		case "base64": return Base64.encode(utf8write(o));
		case "binary": return utf8write(o);
		case "string": return out;
		case "file": return write_dl(opts.file, o, 'utf8');
		case "buffer": {
			if(has_buf) return Buffer_from(o, 'utf8');
			else if(typeof TextEncoder !== "undefined") return new TextEncoder().encode(o);
			else return write_string_type(o, {type:'binary'}).split("").map(function(c) { return c.charCodeAt(0); });
		}
	}
	throw new Error("Unrecognized type " + opts.type);
}

function write_stxt_type(out, opts) {
	switch(opts.type) {
		case "base64": return Base64.encode(out);
		case "binary": return out;
		case "string": return out; /* override in sheet_to_txt */
		case "file": return write_dl(opts.file, out, 'binary');
		case "buffer": {
			if(has_buf) return Buffer_from(out, 'binary');
			else return out.split("").map(function(c) { return c.charCodeAt(0); });
		}
	}
	throw new Error("Unrecognized type " + opts.type);
}

/* TODO: test consistency */
function write_binary_type(out, opts) {
	switch(opts.type) {
		case "string":
		case "base64":
		case "binary":
			var bstr = "";
			// $FlowIgnore
			for(var i = 0; i < out.length; ++i) bstr += String.fromCharCode(out[i]);
			return opts.type == 'base64' ? Base64.encode(bstr) : opts.type == 'string' ? utf8read(bstr) : bstr;
		case "file": return write_dl(opts.file, out);
		case "buffer": return out;
		default: throw new Error("Unrecognized type " + opts.type);
	}
}

function writeSyncXLSX(wb, opts) {
	reset_cp();
	check_wb(wb);
	var o = dup(opts||{});
	if(o.cellStyles) { o.cellNF = true; o.sheetStubs = true; }
	if(o.type == "array") { o.type = "binary"; var out = (writeSyncXLSX(wb, o)); o.type = "array"; return s2ab(out); }
	return write_zip_typeXLSX(wb, o);
}

function writeSync(wb, opts) {
	reset_cp();
	check_wb(wb);
	var o = dup(opts||{});
	if(o.cellStyles) { o.cellNF = true; o.sheetStubs = true; }
	if(o.type == "array") { o.type = "binary"; var out = (writeSync(wb, o)); o.type = "array"; return s2ab(out); }
	var idx = 0;
	if(o.sheet) {
		if(typeof o.sheet == "number") idx = o.sheet;
		else idx = wb.SheetNames.indexOf(o.sheet);
		if(!wb.SheetNames[idx]) throw new Error("Sheet not found: " + o.sheet + " : " + (typeof o.sheet));
	}
	switch(o.bookType || 'xlsb') {
		case 'xml':
		case 'xlml': return write_string_type(write_xlml(wb, o), o);
		case 'slk':
		case 'sylk': return write_string_type(SYLK.from_sheet(wb.Sheets[wb.SheetNames[idx]], o), o);
		case 'htm':
		case 'html': return write_string_type(HTML_.from_sheet(wb.Sheets[wb.SheetNames[idx]], o), o);
		case 'txt': return write_stxt_type(sheet_to_txt(wb.Sheets[wb.SheetNames[idx]], o), o);
		case 'csv': return write_string_type(sheet_to_csv(wb.Sheets[wb.SheetNames[idx]], o), o, "\ufeff");
		case 'dif': return write_string_type(DIF.from_sheet(wb.Sheets[wb.SheetNames[idx]], o), o);
		case 'dbf': return write_binary_type(DBF.from_sheet(wb.Sheets[wb.SheetNames[idx]], o), o);
		case 'prn': return write_string_type(PRN.from_sheet(wb.Sheets[wb.SheetNames[idx]], o), o);
		case 'rtf': return write_string_type(RTF.from_sheet(wb.Sheets[wb.SheetNames[idx]], o), o);
		case 'eth': return write_string_type(ETH.from_sheet(wb.Sheets[wb.SheetNames[idx]], o), o);
		case 'fods': return write_string_type(write_ods(wb, o), o);
		case 'wk1': return write_binary_type(WK_.sheet_to_wk1(wb.Sheets[wb.SheetNames[idx]], o), o);
		case 'wk3': return write_binary_type(WK_.book_to_wk3(wb, o), o);
		case 'biff2': if(!o.biff) o.biff = 2; /* falls through */
		case 'biff3': if(!o.biff) o.biff = 3; /* falls through */
		case 'biff4': if(!o.biff) o.biff = 4; return write_binary_type(write_biff_buf(wb, o), o);
		case 'biff5': if(!o.biff) o.biff = 5; /* falls through */
		case 'biff8':
		case 'xla':
		case 'xls': if(!o.biff) o.biff = 8; return write_cfb_type(wb, o);
		case 'xlsx':
		case 'xlsm':
		case 'xlam':
		case 'xlsb':
		case 'ods': return write_zip_type(wb, o);
		default: throw new Error ("Unrecognized bookType |" + o.bookType + "|");
	}
}

function resolve_book_type(o) {
	if(o.bookType) return;
	var _BT = {
		"xls": "biff8",
		"htm": "html",
		"slk": "sylk",
		"socialcalc": "eth",
		"Sh33tJS": "WTF"
	};
	var ext = o.file.slice(o.file.lastIndexOf(".")).toLowerCase();
	if(ext.match(/^\.[a-z]+$/)) o.bookType = ext.slice(1);
	o.bookType = _BT[o.bookType] || o.bookType;
}

function writeFileSync(wb, filename, opts) {
	var o = opts||{}; o.type = 'file';
	o.file = filename;
	resolve_book_type(o);
	return writeSync(wb, o);
}

function writeFileSyncXLSX(wb, filename, opts) {
	var o = opts||{}; o.type = 'file';
	o.file = filename;
	resolve_book_type(o);
	return writeSyncXLSX(wb, o);
}


function writeFileAsync(filename, wb, opts, cb) {
	var o = opts||{}; o.type = 'file';
	o.file = filename;
	resolve_book_type(o);
	o.type = 'buffer';
	var _cb = cb; if(!(_cb instanceof Function)) _cb = (opts);
	return _fs.writeFile(filename, writeSync(wb, o), _cb);
}
function make_json_row(sheet, r, R, cols, header, hdr, dense, o) {
	var rr = encode_row(R);
	var defval = o.defval, raw = o.raw || !Object.prototype.hasOwnProperty.call(o, "raw");
	var isempty = true;
	var row = (header === 1) ? [] : {};
	if(header !== 1) {
		if(Object.defineProperty) try { Object.defineProperty(row, '__rowNum__', {value:R, enumerable:false}); } catch(e) { row.__rowNum__ = R; }
		else row.__rowNum__ = R;
	}
	if(!dense || sheet[R]) for (var C = r.s.c; C <= r.e.c; ++C) {
		var val = dense ? sheet[R][C] : sheet[cols[C] + rr];
		if(val === undefined || val.t === undefined) {
			if(defval === undefined) continue;
			if(hdr[C] != null) { row[hdr[C]] = defval; }
			continue;
		}
		var v = val.v;
		switch(val.t){
			case 'z': if(v == null) break; continue;
			case 'e': v = (v == 0 ? null : void 0); break;
			case 's': case 'd': case 'b': case 'n': break;
			default: throw new Error('unrecognized type ' + val.t);
		}
		if(hdr[C] != null) {
			if(v == null) {
				if(val.t == "e" && v === null) row[hdr[C]] = null;
				else if(defval !== undefined) row[hdr[C]] = defval;
				else if(raw && v === null) row[hdr[C]] = null;
				else continue;
			} else {
				row[hdr[C]] = raw || (o.rawNumbers && val.t == "n") ? v : format_cell(val,v,o);
			}
			if(v != null) isempty = false;
		}
	}
	return { row: row, isempty: isempty };
}


function sheet_to_json(sheet, opts) {
	if(sheet == null || sheet["!ref"] == null) return [];
	var val = {t:'n',v:0}, header = 0, offset = 1, hdr = [], v=0, vv="";
	var r = {s:{r:0,c:0},e:{r:0,c:0}};
	var o = opts || {};
	var range = o.range != null ? o.range : sheet["!ref"];
	if(o.header === 1) header = 1;
	else if(o.header === "A") header = 2;
	else if(Array.isArray(o.header)) header = 3;
	else if(o.header == null) header = 0;
	switch(typeof range) {
		case 'string': r = safe_decode_range(range); break;
		case 'number': r = safe_decode_range(sheet["!ref"]); r.s.r = range; break;
		default: r = range;
	}
	if(header > 0) offset = 0;
	var rr = encode_row(r.s.r);
	var cols = [];
	var out = [];
	var outi = 0, counter = 0;
	var dense = Array.isArray(sheet);
	var R = r.s.r, C = 0;
	var header_cnt = {};
	if(dense && !sheet[R]) sheet[R] = [];
	var colinfo = o.skipHidden && sheet["!cols"] || [];
	var rowinfo = o.skipHidden && sheet["!rows"] || [];
	for(C = r.s.c; C <= r.e.c; ++C) {
		if(((colinfo[C]||{}).hidden)) continue;
		cols[C] = encode_col(C);
		val = dense ? sheet[R][C] : sheet[cols[C] + rr];
		switch(header) {
			case 1: hdr[C] = C - r.s.c; break;
			case 2: hdr[C] = cols[C]; break;
			case 3: hdr[C] = o.header[C - r.s.c]; break;
			default:
				if(val == null) val = {w: "__EMPTY", t: "s"};
				vv = v = format_cell(val, null, o);
				counter = header_cnt[v] || 0;
				if(!counter) header_cnt[v] = 1;
				else {
					do { vv = v + "_" + (counter++); } while(header_cnt[vv]); header_cnt[v] = counter;
					header_cnt[vv] = 1;
				}
				hdr[C] = vv;
		}
	}
	for (R = r.s.r + offset; R <= r.e.r; ++R) {
		if ((rowinfo[R]||{}).hidden) continue;
		var row = make_json_row(sheet, r, R, cols, header, hdr, dense, o);
		if((row.isempty === false) || (header === 1 ? o.blankrows !== false : !!o.blankrows)) out[outi++] = row.row;
	}
	out.length = outi;
	return out;
}

var qreg = /"/g;
function make_csv_row(sheet, r, R, cols, fs, rs, FS, o) {
	var isempty = true;
	var row = [], txt = "", rr = encode_row(R);
	for(var C = r.s.c; C <= r.e.c; ++C) {
		if (!cols[C]) continue;
		var val = o.dense ? (sheet[R]||[])[C]: sheet[cols[C] + rr];
		if(val == null) txt = "";
		else if(val.v != null) {
			isempty = false;
			txt = ''+(o.rawNumbers && val.t == "n" ? val.v : format_cell(val, null, o));
			for(var i = 0, cc = 0; i !== txt.length; ++i) if((cc = txt.charCodeAt(i)) === fs || cc === rs || cc === 34 || o.forceQuotes) {txt = "\"" + txt.replace(qreg, '""') + "\""; break; }
			if(txt == "ID") txt = '"ID"';
		} else if(val.f != null && !val.F) {
			isempty = false;
			txt = '=' + val.f; if(txt.indexOf(",") >= 0) txt = '"' + txt.replace(qreg, '""') + '"';
		} else txt = "";
		/* NOTE: Excel CSV does not support array formulae */
		row.push(txt);
	}
	if(o.blankrows === false && isempty) return null;
	return row.join(FS);
}

function sheet_to_csv(sheet, opts) {
	var out = [];
	var o = opts == null ? {} : opts;
	if(sheet == null || sheet["!ref"] == null) return "";
	var r = safe_decode_range(sheet["!ref"]);
	var FS = o.FS !== undefined ? o.FS : ",", fs = FS.charCodeAt(0);
	var RS = o.RS !== undefined ? o.RS : "\n", rs = RS.charCodeAt(0);
	var endregex = new RegExp((FS=="|" ? "\\|" : FS)+"+$");
	var row = "", cols = [];
	o.dense = Array.isArray(sheet);
	var colinfo = o.skipHidden && sheet["!cols"] || [];
	var rowinfo = o.skipHidden && sheet["!rows"] || [];
	for(var C = r.s.c; C <= r.e.c; ++C) if (!((colinfo[C]||{}).hidden)) cols[C] = encode_col(C);
	var w = 0;
	for(var R = r.s.r; R <= r.e.r; ++R) {
		if ((rowinfo[R]||{}).hidden) continue;
		row = make_csv_row(sheet, r, R, cols, fs, rs, FS, o);
		if(row == null) { continue; }
		if(o.strip) row = row.replace(endregex,"");
		if(row || (o.blankrows !== false)) out.push((w++ ? RS : "") + row);
	}
	delete o.dense;
	return out.join("");
}

function sheet_to_txt(sheet, opts) {
	if(!opts) opts = {}; opts.FS = "\t"; opts.RS = "\n";
	var s = sheet_to_csv(sheet, opts);
	if(typeof $cptable == 'undefined' || opts.type == 'string') return s;
	var o = $cptable.utils.encode(1200, s, 'str');
	return String.fromCharCode(255) + String.fromCharCode(254) + o;
}

function sheet_to_formulae(sheet) {
	var y = "", x, val="";
	if(sheet == null || sheet["!ref"] == null) return [];
	var r = safe_decode_range(sheet['!ref']), rr = "", cols = [], C;
	var cmds = [];
	var dense = Array.isArray(sheet);
	for(C = r.s.c; C <= r.e.c; ++C) cols[C] = encode_col(C);
	for(var R = r.s.r; R <= r.e.r; ++R) {
		rr = encode_row(R);
		for(C = r.s.c; C <= r.e.c; ++C) {
			y = cols[C] + rr;
			x = dense ? (sheet[R]||[])[C] : sheet[y];
			val = "";
			if(x === undefined) continue;
			else if(x.F != null) {
				y = x.F;
				if(!x.f) continue;
				val = x.f;
				if(y.indexOf(":") == -1) y = y + ":" + y;
			}
			if(x.f != null) val = x.f;
			else if(x.t == 'z') continue;
			else if(x.t == 'n' && x.v != null) val = "" + x.v;
			else if(x.t == 'b') val = x.v ? "TRUE" : "FALSE";
			else if(x.w !== undefined) val = "'" + x.w;
			else if(x.v === undefined) continue;
			else if(x.t == 's') val = "'" + x.v;
			else val = ""+x.v;
			cmds[cmds.length] = y + "=" + val;
		}
	}
	return cmds;
}

function sheet_add_json(_ws, js, opts) {
	var o = opts || {};
	var offset = +!o.skipHeader;
	var ws = _ws || ({});
	var _R = 0, _C = 0;
	if(ws && o.origin != null) {
		if(typeof o.origin == 'number') _R = o.origin;
		else {
			var _origin = typeof o.origin == "string" ? decode_cell(o.origin) : o.origin;
			_R = _origin.r; _C = _origin.c;
		}
	}
	var cell;
	var range = ({s: {c:0, r:0}, e: {c:_C, r:_R + js.length - 1 + offset}});
	if(ws['!ref']) {
		var _range = safe_decode_range(ws['!ref']);
		range.e.c = Math.max(range.e.c, _range.e.c);
		range.e.r = Math.max(range.e.r, _range.e.r);
		if(_R == -1) { _R = _range.e.r + 1; range.e.r = _R + js.length - 1 + offset; }
	} else {
		if(_R == -1) { _R = 0; range.e.r = js.length - 1 + offset; }
	}
	var hdr = o.header || [], C = 0;

	js.forEach(function (JS, R) {
		keys(JS).forEach(function(k) {
			if((C=hdr.indexOf(k)) == -1) hdr[C=hdr.length] = k;
			var v = JS[k];
			var t = 'z';
			var z = "";
			var ref = encode_cell({c:_C + C,r:_R + R + offset});
			cell = ws_get_cell_stub(ws, ref);
			if(v && typeof v === 'object' && !(v instanceof Date)){
				ws[ref] = v;
			} else {
				if(typeof v == 'number') t = 'n';
				else if(typeof v == 'boolean') t = 'b';
				else if(typeof v == 'string') t = 's';
				else if(v instanceof Date) {
					t = 'd';
					if(!o.cellDates) { t = 'n'; v = datenum(v); }
					z = (o.dateNF || SSF._table[14]);
				}
				else if(v === null && o.nullError) { t = 'e'; v = 0; }
				if(!cell) ws[ref] = cell = ({t:t, v:v});
				else {
					cell.t = t; cell.v = v;
					delete cell.w; delete cell.R;
					if(z) cell.z = z;
				}
				if(z) cell.z = z;
			}
		});
	});
	range.e.c = Math.max(range.e.c, _C + hdr.length - 1);
	var __R = encode_row(_R);
	if(offset) for(C = 0; C < hdr.length; ++C) ws[encode_col(C + _C) + __R] = {t:'s', v:hdr[C]};
	ws['!ref'] = encode_range(range);
	return ws;
}
function json_to_sheet(js, opts) { return sheet_add_json(null, js, opts); }

/* get cell, creating a stub if necessary */
function ws_get_cell_stub(ws, R, C) {
	/* A1 cell address */
	if(typeof R == "string") {
		/* dense */
		if(Array.isArray(ws)) {
			var RC = decode_cell(R);
			if(!ws[RC.r]) ws[RC.r] = [];
			return ws[RC.r][RC.c] || (ws[RC.r][RC.c] = {t:'z'});
		}
		return ws[R] || (ws[R] = {t:'z'});
	}
	/* cell address object */
	if(typeof R != "number") return ws_get_cell_stub(ws, encode_cell(R));
	/* R and C are 0-based indices */
	return ws_get_cell_stub(ws, encode_cell({r:R,c:C||0}));
}

/* find sheet index for given name / validate index */
function wb_sheet_idx(wb, sh) {
	if(typeof sh == "number") {
		if(sh >= 0 && wb.SheetNames.length > sh) return sh;
		throw new Error("Cannot find sheet # " + sh);
	} else if(typeof sh == "string") {
		var idx = wb.SheetNames.indexOf(sh);
		if(idx > -1) return idx;
		throw new Error("Cannot find sheet name |" + sh + "|");
	} else throw new Error("Cannot find sheet |" + sh + "|");
}

/* simple blank workbook object */
function book_new() {
	return { SheetNames: [], Sheets: {} };
}

/* add a worksheet to the end of a given workbook */
function book_append_sheet(wb, ws, name) {
	if(!name) for(var i = 1; i <= 0xFFFF; ++i, name = undefined) if(wb.SheetNames.indexOf(name = "Sheet" + i) == -1) break;
	if(!name || wb.SheetNames.length >= 0xFFFF) throw new Error("Too many worksheets");
	check_ws_name(name);
	if(wb.SheetNames.indexOf(name) >= 0) throw new Error("Worksheet with name |" + name + "| already exists!");

	wb.SheetNames.push(name);
	wb.Sheets[name] = ws;
}

/* set sheet visibility (visible/hidden/very hidden) */
function book_set_sheet_visibility(wb, sh, vis) {
	if(!wb.Workbook) wb.Workbook = {};
	if(!wb.Workbook.Sheets) wb.Workbook.Sheets = [];

	var idx = wb_sheet_idx(wb, sh);
	// $FlowIgnore
	if(!wb.Workbook.Sheets[idx]) wb.Workbook.Sheets[idx] = {};

	switch(vis) {
		case 0: case 1: case 2: break;
		default: throw new Error("Bad sheet visibility setting " + vis);
	}
	// $FlowIgnore
	wb.Workbook.Sheets[idx].Hidden = vis;
}

/* set number format */
function cell_set_number_format(cell, fmt) {
	cell.z = fmt;
	return cell;
}

/* set cell hyperlink */
function cell_set_hyperlink(cell, target, tooltip) {
	if(!target) {
		delete cell.l;
	} else {
		cell.l = ({ Target: target });
		if(tooltip) cell.l.Tooltip = tooltip;
	}
	return cell;
}
function cell_set_internal_link(cell, range, tooltip) { return cell_set_hyperlink(cell, "#" + range, tooltip); }

/* add to cell comments */
function cell_add_comment(cell, text, author) {
	if(!cell.c) cell.c = [];
	cell.c.push({t:text, a:author||"SheetJS"});
}

/* set array formula and flush related cells */
function sheet_set_array_formula(ws, range, formula, dynamic) {
	var rng = typeof range != "string" ? range : safe_decode_range(range);
	var rngstr = typeof range == "string" ? range : encode_range(range);
	for(var R = rng.s.r; R <= rng.e.r; ++R) for(var C = rng.s.c; C <= rng.e.c; ++C) {
		var cell = ws_get_cell_stub(ws, R, C);
		cell.t = 'n';
		cell.F = rngstr;
		delete cell.v;
		if(R == rng.s.r && C == rng.s.c) {
			cell.f = formula;
			if(dynamic) cell.D = true;
		}
	}
	return ws;
}

var utils = {
	encode_col: encode_col,
	encode_row: encode_row,
	encode_cell: encode_cell,
	encode_range: encode_range,
	decode_col: decode_col,
	decode_row: decode_row,
	split_cell: split_cell,
	decode_cell: decode_cell,
	decode_range: decode_range,
	format_cell: format_cell,
	sheet_add_aoa: sheet_add_aoa,
	sheet_add_json: sheet_add_json,
	sheet_add_dom: sheet_add_dom,
	aoa_to_sheet: aoa_to_sheet,
	json_to_sheet: json_to_sheet,
	table_to_sheet: parse_dom_table,
	table_to_book: table_to_book,
	sheet_to_csv: sheet_to_csv,
	sheet_to_txt: sheet_to_txt,
	sheet_to_json: sheet_to_json,
	sheet_to_html: HTML_.from_sheet,
	sheet_to_formulae: sheet_to_formulae,
	sheet_to_row_object_array: sheet_to_json,
	sheet_get_cell: ws_get_cell_stub,
	book_new: book_new,
	book_append_sheet: book_append_sheet,
	book_set_sheet_visibility: book_set_sheet_visibility,
	cell_set_number_format: cell_set_number_format,
	cell_set_hyperlink: cell_set_hyperlink,
	cell_set_internal_link: cell_set_internal_link,
	cell_add_comment: cell_add_comment,
	sheet_set_array_formula: sheet_set_array_formula,
	consts: {
		SHEET_VISIBLE: 0,
		SHEET_HIDDEN: 1,
		SHEET_VERY_HIDDEN: 2
	}
};

if(typeof parse_xlscfb !== "undefined") XLSX.parse_xlscfb = parse_xlscfb;
XLSX.parse_zip = parse_zip;
XLSX.read = readSync; //xlsread
XLSX.readFile = readFileSync; //readFile
XLSX.readFileSync = readFileSync;
XLSX.write = writeSync;
XLSX.writeFile = writeFileSync;
XLSX.writeFileSync = writeFileSync;
XLSX.writeFileAsync = writeFileAsync;
XLSX.utils = utils;
XLSX.writeXLSX = writeSyncXLSX;
XLSX.writeFileXLSX = writeFileSyncXLSX;
XLSX.SSF = SSF;
if(typeof __stream !== "undefined") XLSX.stream = __stream;
if(typeof CFB !== "undefined") XLSX.CFB = CFB;
if(typeof require !== "undefined") {
  var strmod = require('stream');
  if((strmod||{}).Readable) set_readable(strmod.Readable);
}
}
/*global define */
if(typeof exports !== 'undefined') make_xlsx_lib(exports);
else if(typeof module !== 'undefined' && module.exports) make_xlsx_lib(module.exports);
else if(typeof define === 'function' && define.amd) define('xlsx', function() { if(!XLSX.version) make_xlsx_lib(XLSX); return XLSX; });
else make_xlsx_lib(XLSX);
/* NOTE: the following extra line is needed for "Lightning Locker Service" */
if(typeof window !== 'undefined' && !window.XLSX) try { window.XLSX = XLSX; } catch(e) {}