diff --git a/bits/70_xlsx.js b/bits/70_xlsx.js
index 12db18d..6e2b7b7 100644
--- a/bits/70_xlsx.js
+++ b/bits/70_xlsx.js
@@ -103,7 +103,7 @@ function parseSheet(data) {
 
 	/* 18.3.1.35 dimension CT_SheetDimension ? */
 	var ref = data.match(/<dimension ref="([^"]*)"\s*\/>/);
-	if(ref && ref.indexOf(":") !== -1) s["!ref"] = ref[1];
+	if(ref && ref.length == 2 && ref[1].indexOf(":") !== -1) s["!ref"] = ref[1];
 
 	var refguess = {s: {r:1000000, c:1000000}, e: {r:0, c:0} };
 	var q = ["v","f"];
@@ -121,9 +121,14 @@ function parseSheet(data) {
 		/* 18.3.1.4 c CT_Cell */
 		var cells = x.substr(x.indexOf('>')+1).split(/<c/);
 		cells.forEach(function(c, idx) { if(c === "" || c.trim() === "") return;
+			var cref = c.match(/r="([^"]*)"/);
 			c = "<c" + c;
-			if(refguess.s.c > idx - 1) refguess.s.c = idx - 1;
-			if(refguess.e.c < idx - 1) refguess.e.c = idx - 1;
+			if(cref && cref.length == 2) {
+				var cref_cell = decode_cell(cref[1]);
+				idx = cref_cell.c;
+			}
+			if(refguess.s.c > idx) refguess.s.c = idx;
+			if(refguess.e.c < idx) refguess.e.c = idx;
 			var cell = parsexmltag((c.match(/<c[^>]*>/)||[c])[0]); delete cell[0];
 			var d = c.substr(c.indexOf('>')+1);
 			var p = {};
diff --git a/package.json b/package.json
index 6e21f65..c99a6d7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "xlsx",
-	"version": "0.2.7-d",
+	"version": "0.2.8",
 	"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 89d82ae..257c1db 100644
--- a/xlsx.js
+++ b/xlsx.js
@@ -533,7 +533,7 @@ function parseSheet(data) {
 
 	/* 18.3.1.35 dimension CT_SheetDimension ? */
 	var ref = data.match(/<dimension ref="([^"]*)"\s*\/>/);
-	if(ref && ref.indexOf(":") !== -1) s["!ref"] = ref[1];
+	if(ref && ref.length == 2 && ref[1].indexOf(":") !== -1) s["!ref"] = ref[1];
 
 	var refguess = {s: {r:1000000, c:1000000}, e: {r:0, c:0} };
 	var q = ["v","f"];
@@ -551,9 +551,14 @@ function parseSheet(data) {
 		/* 18.3.1.4 c CT_Cell */
 		var cells = x.substr(x.indexOf('>')+1).split(/<c/);
 		cells.forEach(function(c, idx) { if(c === "" || c.trim() === "") return;
+			var cref = c.match(/r="([^"]*)"/);
 			c = "<c" + c;
-			if(refguess.s.c > idx - 1) refguess.s.c = idx - 1;
-			if(refguess.e.c < idx - 1) refguess.e.c = idx - 1;
+			if(cref && cref.length == 2) {
+				var cref_cell = decode_cell(cref[1]);
+				idx = cref_cell.c;
+			}
+			if(refguess.s.c > idx) refguess.s.c = idx;
+			if(refguess.e.c < idx) refguess.e.c = idx;
 			var cell = parsexmltag((c.match(/<c[^>]*>/)||[c])[0]); delete cell[0];
 			var d = c.substr(c.indexOf('>')+1);
 			var p = {};