exceljs · guyonroche · Sep 6, 2016 · May 13, 2016 · May 18, 2016
diff --git a/lib/xlsx/xform/shared-string-xform.js b/lib/xlsx/xform/shared-string-xform.js
@@ -50,8 +50,10 @@ var SharedStringXform = module.exports = function(model) {
 utils.inherits(SharedStringXform, BaseXform, {
 
   write: function(xmlStream, model) {
-    model = model || this.model;
+    if (model === undefined || model === null)
+      model = this.model;
 
+
     xmlStream.openNode('si');
     if (model.richText) {
       var r = this.map.r;

diff --git a/lib/xlsx/xlsx.js b/lib/xlsx/xlsx.js
@@ -228,7 +228,8 @@ XLSX.prototype = {
       };
 
       function parseBool(attribute) {
-        return !!attribute;
+        //check for false string as used by open office
+        return (attribute === 'false') ? false : !!attribute;
       }
 
       var current;