diff --git a/bits/10_ssf.js b/bits/10_ssf.js
index 6ffea82..86491b2 100644
--- a/bits/10_ssf.js
+++ b/bits/10_ssf.js
@@ -131,8 +131,8 @@ var write_date = function(type, fmt, val) {
 			case 'ss': return pad(val.S, 2);
 			default: throw 'bad second format: ' + fmt;
 		}; break;
-		/* TODO: handle the ECMA spec format ee -> yy */ 
-		case 'e': { return val.y; } break; 
+		/* TODO: handle the ECMA spec format ee -> yy */
+		case 'e': { return val.y; } break;
 		case 'A': return (val.h>=12 ? 'P' : 'A') + fmt.substr(1);
 		default: throw 'bad format type ' + type + ' in ' + fmt;
 	}
diff --git a/bits/70_xlsx.js b/bits/70_xlsx.js
index dade954..d9395e7 100644
--- a/bits/70_xlsx.js
+++ b/bits/70_xlsx.js
@@ -120,7 +120,7 @@ function parsexmltag(tag) {
 
 var strs = {}; // shared strings
 var styles = {}; // shared styles
-
+var _ssfopts = {}; // spreadsheet formatting options
 
 /* 18.3 Worksheets */
 function parseSheet(data) {
@@ -183,7 +183,7 @@ function parseSheet(data) {
 					p.raw = p.v;
 					p.rawt = p.t;
 					try {
-						p.v = SSF.format(cf.numFmtId,p.v);
+						p.v = SSF.format(cf.numFmtId,p.v,_ssfopts);
 						p.t = 'str';
 					} catch(e) { p.v = p.raw; }
 				}
@@ -440,6 +440,8 @@ function parseWB(data) {
 	wb.WBView.forEach(function(w){for(var z in WBViewDef) if(null==w[z]) w[z]=WBViewDef[z]; });
 	wb.Sheets.forEach(function(w){for(var z in SheetDef) if(null==w[z]) w[z]=SheetDef[z]; });
 
+	_ssfopts.date1904 = wb.WBProps.date1904;
+
 	return wb;
 }
 
diff --git a/package.json b/package.json
index 59f25b9..e22e27f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "xlsx",
-	"version": "0.2.0",
+	"version": "0.2.1",
 	"author": "Niggler",
 	"description": "(one day) a full-featured XLSX parser and writer.  For now, primitive parser",
 	"keywords": [
diff --git a/xlsx.js b/xlsx.js
index 8a977ac..ae9d4c6 100644
--- a/xlsx.js
+++ b/xlsx.js
@@ -133,8 +133,8 @@ var write_date = function(type, fmt, val) {
 			case 'ss': return pad(val.S, 2);
 			default: throw 'bad second format: ' + fmt;
 		}; break;
-		/* TODO: handle the ECMA spec format ee -> yy */ 
-		case 'e': { return val.y; } break; 
+		/* TODO: handle the ECMA spec format ee -> yy */
+		case 'e': { return val.y; } break;
 		case 'A': return (val.h>=12 ? 'P' : 'A') + fmt.substr(1);
 		default: throw 'bad format type ' + type + ' in ' + fmt;
 	}
@@ -344,7 +344,7 @@ function parsexmltag(tag) {
 
 var strs = {}; // shared strings
 var styles = {}; // shared styles
-
+var _ssfopts = {}; // spreadsheet formatting options
 
 /* 18.3 Worksheets */
 function parseSheet(data) {
@@ -407,7 +407,7 @@ function parseSheet(data) {
 					p.raw = p.v;
 					p.rawt = p.t;
 					try {
-						p.v = SSF.format(cf.numFmtId,p.v);
+						p.v = SSF.format(cf.numFmtId,p.v,_ssfopts);
 						p.t = 'str';
 					} catch(e) { p.v = p.raw; }
 				}
@@ -664,6 +664,8 @@ function parseWB(data) {
 	wb.WBView.forEach(function(w){for(var z in WBViewDef) if(null==w[z]) w[z]=WBViewDef[z]; });
 	wb.Sheets.forEach(function(w){for(var z in SheetDef) if(null==w[z]) w[z]=SheetDef[z]; });
 
+	_ssfopts.date1904 = wb.WBProps.date1904;
+
 	return wb;
 }