diff --git a/demos/xspreadsheet/index.html b/demos/xspreadsheet/index.html
index 710ac36..633a0ab 100644
--- a/demos/xspreadsheet/index.html
+++ b/demos/xspreadsheet/index.html
@@ -42,6 +42,7 @@ a { text-decoration: none }
 <script src="https://unpkg.com/x-data-spreadsheet/dist/xspreadsheet.js"></script>
 <script src="shim.js"></script>
 <script src="xlsx.full.min.js"></script>
+<script src="xlsxspread.js"></script>
 <script>
 /*jshint browser:true */
 /* eslint-env browser */
@@ -54,43 +55,6 @@ var xspr = x_spreadsheet(HTMLOUT);
 HTMLOUT.style.height = (window.innerHeight - 400) + "px";
 HTMLOUT.style.width = (window.innerWidth - 50) + "px";
 
-function stox(wb) {
-	var out = [];
-	wb.SheetNames.forEach(function(name) {
-		var o = {name:name, rows:{}};
-		var ws = wb.Sheets[name];
-		var aoa = XLSX.utils.sheet_to_json(ws, {raw: false, header:1});
-		aoa.forEach(function(r, i) {
-			var cells = {};
-			r.forEach(function(c, j) { cells[j] = ({ text: c }); });
-			o.rows[i] = { cells: cells };
-		})
-		out.push(o);
-	});
-	return out;
-}
-
-function xtos(sdata) {
-	var out = XLSX.utils.book_new();
-	sdata.forEach(function(xws) {
-		var aoa = [[]];
-		var rowobj = xws.rows;
-		for(var ri = 0; ri < rowobj.len; ++ri) {
-			var row = rowobj[ri];
-			if(!row) continue;
-			aoa[ri] = [];
-			Object.keys(row.cells).forEach(function(k) {
-				var idx = +k;
-				if(isNaN(idx)) return;
-				aoa[ri][idx] = row.cells[k].text;
-			});
-		}
-		var ws = XLSX.utils.aoa_to_sheet(aoa);
-		XLSX.utils.book_append_sheet(out, ws, xws.name);
-	});
-	return out;
-}
-
 var process_wb = (function() {
 	var XPORT = document.getElementById('xport');
 
diff --git a/demos/xspreadsheet/xlsxspread.js b/demos/xspreadsheet/xlsxspread.js
new file mode 100644
index 0000000..d1119bf
--- /dev/null
+++ b/demos/xspreadsheet/xlsxspread.js
@@ -0,0 +1,37 @@
+function stox(wb) {
+	var out = [];
+	wb.SheetNames.forEach(function(name) {
+		var o = {name:name, rows:{}};
+		var ws = wb.Sheets[name];
+		var aoa = XLSX.utils.sheet_to_json(ws, {raw: false, header:1});
+		aoa.forEach(function(r, i) {
+			var cells = {};
+			r.forEach(function(c, j) { cells[j] = ({ text: c }); });
+			o.rows[i] = { cells: cells };
+		})
+		out.push(o);
+	});
+	return out;
+}
+
+function xtos(sdata) {
+	var out = XLSX.utils.book_new();
+	sdata.forEach(function(xws) {
+		var aoa = [[]];
+		var rowobj = xws.rows;
+		for(var ri = 0; ri < rowobj.len; ++ri) {
+			var row = rowobj[ri];
+			if(!row) continue;
+			aoa[ri] = [];
+			Object.keys(row.cells).forEach(function(k) {
+				var idx = +k;
+				if(isNaN(idx)) return;
+				aoa[ri][idx] = row.cells[k].text;
+			});
+		}
+		var ws = XLSX.utils.aoa_to_sheet(aoa);
+		XLSX.utils.book_append_sheet(out, ws, xws.name);
+	});
+	return out;
+}
+