diff --git a/README.md b/README.md
index 3a61605..db9722e 100644
--- a/README.md
+++ b/README.md
@@ -175,6 +175,7 @@ The `demos` directory includes sample projects for:
 - [`requirejs`](demos/requirejs/)
 - [`rollup`](demos/rollup/)
 - [`systemjs`](demos/systemjs/)
+- [`vue 2`](demos/vue/)
 - [`webpack`](demos/webpack/)
 
 ### Optional Modules
diff --git a/demos/angular/SheetJS-angular.js b/demos/angular/SheetJS-angular.js
index d97a780..74523ad 100644
--- a/demos/angular/SheetJS-angular.js
+++ b/demos/angular/SheetJS-angular.js
@@ -7,7 +7,7 @@ function SheetJSExportService(uiGridExporterService) {
 
 		var fileName = gridApi.grid.options.filename || 'SheetJS';
 		fileName += wopts.bookType ? "." + wopts.bookType : '.xlsx';
-		
+
 		var sheetName = gridApi.grid.options.sheetname || 'Sheet1';
 
 		var wb = XLSX.utils.book_new(), ws = uigrid_to_sheet(data, columns);
@@ -63,15 +63,15 @@ function SheetJSExportService(uiGridExporterService) {
 }
 
 var SheetJSImportDirective = function() {
-  return {
+	return {
 		scope: { opts: '=' },
-    link: function ($scope, $elm, $attrs) {
-      $elm.on('change', function (changeEvent) {
-        var reader = new FileReader();
+		link: function ($scope, $elm, $attrs) {
+			$elm.on('change', function (changeEvent) {
+				var reader = new FileReader();
 
-        reader.onload = function (e) {
+				reader.onload = function (e) {
 					/* read workbook */
-          var bstr = e.target.result;
+					var bstr = e.target.result;
 					var wb = XLSX.read(bstr, {type:'binary'});
 
 					/* grab first sheet */
@@ -98,10 +98,10 @@ var SheetJSImportDirective = function() {
 						$scope.opts.columnDefs = cols;
 						$scope.opts.data = data;
 					});
-        };
-  
-        reader.readAsBinaryString(changeEvent.target.files[0]);
-      });
-    }
-  }	
+				};
+
+				reader.readAsBinaryString(changeEvent.target.files[0]);
+			});
+		}
+	}
 }
diff --git a/demos/vue/README.md b/demos/vue/README.md
new file mode 100644
index 0000000..ee8f3d9
--- /dev/null
+++ b/demos/vue/README.md
@@ -0,0 +1,20 @@
+# VueJS 2
+
+The `xlsx.core.min.js` and `xlsx.full.min.js` scripts are designed to be dropped
+into web pages with script tags e.g.
+
+```html
+<script src="xlsx.full.min.js"></script>
+```
+
+Strictly speaking, there should be no need for a Vue.JS demo!  You can proceed
+as you would with any other browser-friendly library.
+
+This demo directly generates HTML using `sheet_to_html` and adds an element to
+a pregenerated template.  It also has a button for exporting as XLSX.
+
+
+## Single File Components
+
+For Single File Components, a simple `import XLSX from 'xlsx'` should suffice.
+The webpack demo includes a sample `webpack.config.js`.
diff --git a/demos/vue/SheetJS-vue.js b/demos/vue/SheetJS-vue.js
new file mode 100644
index 0000000..926d6b5
--- /dev/null
+++ b/demos/vue/SheetJS-vue.js
@@ -0,0 +1,63 @@
+var SheetJSFT = [
+	"xlsx", "xlsb", "xlsm", "xls", "xml", "csv", "txt", "ods", "fods", "uos", "sylk", "dif", "dbf", "prn", "qpw", "123", "wb*", "wq*", "html", "htm"
+].map(function(x) { return "." + x; }).join(",");
+
+var SJSTemplate = [
+	'<div>',
+		'<input type="file" multiple="false" id="sheetjs-input" accept="' + SheetJSFT + '" @change="onchange" />',
+		'<br/>',
+		'<button type="button" id="expor-table" style="visibility:hidden" @click="onexport">Export to XLSX</button>',
+		'<br/>',
+		'<div id="out-table"></div>',
+	'</div>'
+].join("");
+
+function s2ab(s) {
+	if(typeof ArrayBuffer !== 'undefined') {
+		var buf = new ArrayBuffer(s.length);
+		var view = new Uint8Array(buf);
+		for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
+		return buf;
+	} else {
+		var buf = new Array(s.length);
+		for (var i=0; i!=s.length; ++i) buf[i] = s.charCodeAt(i) & 0xFF;
+		return buf;
+	}
+}
+
+Vue.component('html-preview', {
+	template: SJSTemplate,
+	methods: {
+		onchange: function(evt) {
+			var reader = new FileReader();
+			reader.onload = function (e) {
+				/* read workbook */
+				var bstr = e.target.result;
+				var wb = XLSX.read(bstr, {type:'binary'});
+
+				/* grab first sheet */
+				var wsname = wb.SheetNames[0];
+				var ws = wb.Sheets[wsname];
+
+				/* generate HTML */
+				var HTML = XLSX.utils.sheet_to_html(ws); 
+
+				/* update table */
+				document.getElementById('out-table').innerHTML = HTML;
+				/* show export button */
+				document.getElementById('expor-table').style.visibility = "visible";
+			};
+
+			reader.readAsBinaryString(evt.target.files[0]);
+		},
+		onexport: function(evt) {
+			/* generate workbook object from table */
+			var wb = XLSX.utils.table_to_book(document.getElementById('out-table'));
+			/* get binary string as output */
+			var wbout = XLSX.write(wb, { bookType: 'xlsx', type: 'binary' });
+
+			/* force a download */
+			saveAs(new Blob([s2ab(wbout)], { type: 'application/octet-stream' }), "sheetjs.xlsx");
+		}
+	}
+});
diff --git a/demos/vue/index.html b/demos/vue/index.html
new file mode 100644
index 0000000..288492a
--- /dev/null
+++ b/demos/vue/index.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<!-- xlsx.js (C) 2013-present  SheetJS http://sheetjs.com -->
+<!-- vim: set ts=2: -->
+<html ng-app="app">
+<head>
+	<title>SheetJS + VueJS2</title>
+	<!-- Vue 2 -->
+	<script src="https://unpkg.com/vue@2.x"></script>
+
+	<!-- FileSaver shim for exporting files -->
+	<script src="https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/1.3.3/FileSaver.min.js"></script>
+
+	<!-- SheetJS js-xlsx library -->
+	<script src="xlsx.full.min.js"></script>
+
+	<!-- SheetJS Vue components -->
+	<script src="SheetJS-vue.js"></script>
+
+<style>
+.grid1 {
+	width: 500px;
+	height: 400px;
+};
+</style>
+</head>
+<body>
+<pre>
+<b><a href="http://sheetjs.com">SheetJS + VueJS2 demo</a></b>
+
+The core library can be used as-is in Vue applications.
+The <a href="https://github.com/sheetjs/js-xlsx">Community Edition README</a> details some common use cases.
+We also have some <a href="http://sheetjs.com/demos/">more public demos</a>
+
+This demo shows a sample Vue component "html-preview" that:
+- displays a file input that accepts a spreadsheet file
+- draws the first worksheet of a submitted file as HTML
+- presents an export button to generate XLSX files
+
+<a href="https://obamawhitehouse.archives.gov/sites/default/files/omb/budget/fy2014/assets/receipts.xls">Sample Spreadsheet</a>
+</pre>
+
+<div id="app">
+	<html-preview></html-preview>
+</div>
+
+<script lang="javascript">
+var app = new Vue({ el: '#app' });
+</script>
+</body>
+</html>
+
diff --git a/demos/vue/xlsx.full.min.js b/demos/vue/xlsx.full.min.js
new file mode 120000
index 0000000..dbca48d
--- /dev/null
+++ b/demos/vue/xlsx.full.min.js
@@ -0,0 +1 @@
+../../dist/xlsx.full.min.js
\ No newline at end of file
diff --git a/demos/webpack/README.md b/demos/webpack/README.md
index 6a98824..f33eefb 100644
--- a/demos/webpack/README.md
+++ b/demos/webpack/README.md
@@ -28,3 +28,15 @@ convince webpack, set `output` in the webpack config:
 		library: 'XLSX'
 	}
 ```
+
+## Omitting optional dependencies
+
+The `codepage` is needed in certain special cases, including files generated by
+non-US-English versions of Excel, but may not be needed.  To reduce build size,
+the module can be omitted by aliasing the dependency:
+
+```js
+	resolve: {
+		alias: { "./dist/cpexcel.js": "" }
+	},
+```
diff --git a/demos/webpack/webpack.config.js b/demos/webpack/webpack.config.js
index 6fbaa28..1fa5d72 100644
--- a/demos/webpack/webpack.config.js
+++ b/demos/webpack/webpack.config.js
@@ -3,6 +3,12 @@ module.exports = {
 		libraryTarget: 'var',
 		library: 'XLSX'
 	},
+	/* Uncomment the next block to suppress codepage */
+	/*
+	resolve: {
+		alias: { "./dist/cpexcel.js": "" }
+	},
+	*/
 	node: {
 		fs: false,
 		process: false,
diff --git a/docbits/10_install.md b/docbits/10_install.md
index 87c74fd..818834a 100644
--- a/docbits/10_install.md
+++ b/docbits/10_install.md
@@ -33,6 +33,7 @@ The `demos` directory includes sample projects for:
 - [`requirejs`](demos/requirejs/)
 - [`rollup`](demos/rollup/)
 - [`systemjs`](demos/systemjs/)
+- [`vue 2`](demos/vue/)
 - [`webpack`](demos/webpack/)
 
 ### Optional Modules
diff --git a/types/index.d.ts b/types/index.d.ts
index 254b8a1..5280e4c 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -13,7 +13,9 @@ export function writeFile(data: WorkBook, filename: string, opts?: WritingOption
 /** Attempts to write the workbook data */
 export function write(data: WorkBook, opts?: WritingOptions): any;
 
+/** Utility Functions */
 export const utils: XLSX$Utils;
+/** Stream Utility Functions */
 export const stream: StreamUtils;
 
 /** Number Format (either a string or an index to the format table) */
@@ -223,10 +225,18 @@ export interface SheetProps {
     Hidden?: 0 | 1 | 2;
 }
 
+/** Defined Name Object */
 export interface DefinedName {
+    /** Name */
     Name: string;
+
+    /** Reference */
     Ref: string;
+
+    /** Scope (undefined for workbook scope) */
     Sheet?: number;
+
+    /** Name comment */
     Comment?: string;
 }
 
@@ -251,6 +261,7 @@ export interface WorkbookProperties {
     filterPrivacy?: boolean;
 }
 
+/** Column Properties Object */
 export interface ColInfo {
     /* --- visibility --- */
 
@@ -271,6 +282,8 @@ export interface ColInfo {
     /** Excel's "Max Digit Width" unit, always integral */
     MDW?: number;
 }
+
+/** Row Properties Object */
 export interface RowInfo {
     /* --- visibility --- */
 
@@ -414,25 +427,33 @@ export interface AutoFilterInfo {
 }
 export type WSKeys = SheetKeys | ColInfo[] | RowInfo[] | Range[] | ProtectInfo | AutoFilterInfo;
 
-/**
- * object representing the worksheet
- */
+/** Worksheet Object */
 export interface WorkSheet extends Sheet {
     /**
      * Indexing with a cell address string maps to a cell object
      * Special keys start with '!'
      */
     [cell: string]: CellObject | WSKeys | any;
+
+    /** Column Info */
     '!cols'?: ColInfo[];
+
+    /** Row Info */
     '!rows'?: RowInfo[];
+
+    /** Merge Ranges */
     '!merges'?: Range[];
+
+    /** Worksheet Protection info */
     '!protect'?: ProtectInfo;
+
+    /** AutoFilter info */
     '!autofilter'?: AutoFilterInfo;
 }
 
 /**
  * The Excel data type for a cell.
- * b Boolean, n Number, e error, s String, d Date
+ * b Boolean, n Number, e error, s String, d Date, z Stub
  */
 export type ExcelDataType = 'b' | 'n' | 'e' | 's' | 'd' | 'z';
 
@@ -442,6 +463,7 @@ export type ExcelDataType = 'b' | 'n' | 'e' | 's' | 'd' | 'z';
  */
 export type BookType = 'xlsx' | 'xlsm' | 'xlsb' | 'biff2' | 'xlml' | 'ods' | 'fods' | 'csv' | 'txt' | 'sylk' | 'html' | 'dif' | 'prn';
 
+/** Comment element */
 export interface Comment {
     /** Author of the comment block */
     a?: string;
@@ -450,6 +472,7 @@ export interface Comment {
     t: string;
 }
 
+/** Link object */
 export interface Hyperlink {
     /** Target of the link (HREF) */
     Target: string;
@@ -458,6 +481,7 @@ export interface Hyperlink {
     Tooltip?: string;
 }
 
+/** Worksheet Cell Object */
 export interface CellObject {
     /** The raw value of the cell.  Can be omitted if a formula is specified */
     v?: string | number | boolean | Date;
@@ -496,6 +520,7 @@ export interface CellObject {
     s?: object;
 }
 
+/** Simple Cell Address */
 export interface CellAddress {
     /** Column number */
     c: number;
@@ -525,24 +550,36 @@ export interface Sheet2CSVOpts {
 }
 
 export interface Sheet2HTMLOpts {
+    /** Add contenteditable to every cell */
     editable?: boolean;
+    /** Header HTML */
     header?: string;
+    /** Footer HTML */
     footer?: string;
 }
 
 export interface Sheet2JSONOpts {
-    /** Use specified date format */
+    /** Use specified format for date cells */
     dateNF?: NumberFormat;
 
+    /** Output format */
     header?: "A"|number|string[];
 
+    /** Override worksheet range */
     range?: any;
 
+    /** Include or omit blank lines in the output */
+    blankrows?: boolean;
+
+    /** Default value for null/undefined values */
+    defval?: any;
+
+    /** if true, return raw data; if false, return formatted text */
     raw?: boolean;
 }
 
 export interface AOA2SheetOpts {
-    /** Use specified date format */
+    /** Use specified format for date cells */
     dateNF?: NumberFormat;
 
     /**
@@ -568,9 +605,7 @@ export interface Table2SheetOpts {
     dateNF?: NumberFormat;
 }
 
-/**
- * General utilities
- */
+/** General utilities */
 export interface XLSX$Utils {
     /* --- Import Functions --- */
 
@@ -629,13 +664,43 @@ export interface XLSX$Utils {
     /** Converts A1 range to 0-indexed form */
     decode_range(range: string): Range;
 
-    /* --- WorkBook Utilities --- */
+    /* --- General Utilities --- */
 
-    /** Creates a new WorkBook */
+    /** Creates a new workbook */
     book_new(): WorkBook;
 
-    /** Appends worksheet to given workbook (blank name will enumerate Sheet# to find unused name) */
-    book_append_sheet(wb: WorkBook, ws: WorkSheet, name?: String): void;
+    /** Append a worksheet to a workbook */
+    book_append_sheet(workbook: WorkBook, worksheet: WorkSheet, name?: string): void;
+
+    /** Set sheet visibility (visible/hidden/very hidden) */
+    book_set_sheet_visibility(workbook: WorkBook, sheet: number|string, visibility: number): void;
+
+    /** Set number format for a cell */
+    cell_set_number_format(cell: CellObject, fmt: string|number): CellObject;
+
+    /** Set hyperlink for a cell */
+    cell_set_hyperlink(cell: CellObject, target: string, tooltip?: string): CellObject;
+
+    /** Add comment to a cell */
+    cell_add_comment(cell: CellObject, text: string, author?: string): void;
+
+    /** Assign an Array Formula to a range */
+    sheet_set_array_formula(ws: WorkSheet, range: Range|string, formula: string): WorkSheet;
+
+    consts: XLSX$Consts;
+}
+
+export interface XLSX$Consts {
+    /* --- Sheet Visibility --- */
+
+    /** Visibility: Visible */
+    SHEET_VISIBLE: 0;
+
+    /** Visibility: Hidden */
+    SHEET_HIDDEN: 1;
+
+    /** Visibility: Very Hidden */
+    SHEET_VERYHIDDEN: 2;
 }
 
 /** NODE ONLY! these return Readable Streams */
diff --git a/types/write.ts b/types/write.ts
index 5fde037..ae83389 100644
--- a/types/write.ts
+++ b/types/write.ts
@@ -38,12 +38,13 @@ console.log("Columns :");
 for(i = 0; i !== wscols.length; ++i) console.log(wscols[i]);
 
 /* require XLSX */
-import XLSX = require('xlsx');
+import * as XLSX from 'xlsx';
 
 /* blank workbook constructor */
 
 let wb: XLSX.WorkBook = { SheetNames: <string[]>[], Sheets: {} };
 
+wb = XLSX.utils.book_new();
 
 /* convert an array of arrays in JS to a CSF spreadsheet */
 let ws: XLSX.WorkSheet = XLSX.utils.aoa_to_sheet(data, {cellDates:true});
@@ -51,6 +52,7 @@ let ws: XLSX.WorkSheet = XLSX.utils.aoa_to_sheet(data, {cellDates:true});
 /* TEST: add worksheet to workbook */
 wb.SheetNames.push(ws_name);
 wb.Sheets[ws_name] = ws;
+XLSX.utils.book_append_sheet(wb, ws, ws_name);
 
 /* TEST: simple formula */
 (<XLSX.CellObject>ws['C1']).f = "A1+B1";
@@ -60,12 +62,14 @@ ws['C2'] = {t:'n', f:"A1+B1"};
 
 ws['D1'] = {t:'n', f:"SUM(A1:C1*A1:C1)", F:"D1:D1"};
 
+XLSX.utils.sheet_set_array_formula(ws, 'D1:D1', "SUM(A1:C1*A1:C1)");
 
 /* TEST: multi-cell array formula */
 ws['E1'] = {t:'n', f:"TRANSPOSE(A1:D1)", F:"E1:E4"};
 ws['E2'] = {t:'n', F:"E1:E4"};
 ws['E3'] = {t:'n', F:"E1:E4"};
 ws['E4'] = {t:'n', F:"E1:E4"};
+XLSX.utils.sheet_set_array_formula(ws, 'E1:E4', "TRANSPOSE(A1:D1)");
 ws["!ref"] = "A1:E6";
 
 /* TEST: column props */
@@ -76,13 +80,16 @@ ws['!rows'] = wsrows;
 
 /* TEST: hyperlink note: Excel does not automatically style hyperlinks */
 (<XLSX.CellObject>ws['A3']).l = { Target: "http://sheetjs.com", Tooltip: "Visit us <SheetJS.com!>" };
+XLSX.utils.cell_set_hyperlink(ws['A3'], "http://sheetjs.com", "Visit us <SheetJS.com!>" );
 
 /* TEST: built-in format */
 (<XLSX.CellObject>ws['B1']).z = "0%"; // Format Code 9
+XLSX.utils.cell_set_number_format(ws['B1'], "0%");
 
 /* TEST: custom format */
 const custfmt = "\"This is \"\\ 0.0";
 (<XLSX.CellObject>ws['C2']).z = custfmt;
+XLSX.utils.cell_set_number_format(ws['C2'], custfmt);
 
 /* TEST: page margins */
 ws['!margins'] =  { left:1.0, right:1.0, top:1.0, bottom:1.0, header:0.5, footer:0.5 };
@@ -95,6 +102,9 @@ wb.SheetNames.push("Hidden");
 wb.Sheets["Hidden"] = XLSX.utils.aoa_to_sheet(["Hidden".split(""), [1,2,3]]);
 wb.Workbook = {Sheets:[]};
 wb.Workbook.Sheets[1] = {Hidden:1};
+const data_2 = ["Hidden".split(""), [1,2,3]];
+XLSX.utils.book_append_sheet(wb, XLSX.utils.aoa_to_sheet(data_2), "Hidden");
+XLSX.utils.book_set_sheet_visibility(wb, "Hidden", XLSX.utils.consts.SHEET_HIDDEN);
 
 /* TEST: properties */
 wb.Props = {
@@ -115,6 +125,7 @@ wb.Props = {
 (<XLSX.CellObject>ws['A4']).c = [];
 (<XLSX.CellObject>ws['A4']).c.push({a:"SheetJS",t:"I'm a little comment, short and stout!\n\nWell, Stout may be the wrong word"});
 
+XLSX.utils.cell_add_comment(ws['A4'], "I'm a little comment, short and stout!\n\nWell, Stout may be the wrong word", "SheetJS");
 
 /* TEST: sheet protection */
 ws['!protect'] = {