diff --git a/demos/dev.css b/demos/dev.css
index d6cef21..6c593e3 100644
--- a/demos/dev.css
+++ b/demos/dev.css
@@ -19,7 +19,7 @@ td {
 }
 
 .grandecellule {
-		font-size: 1.4rem;
+    font-size: 1.4rem;
 }
 
 
@@ -29,7 +29,6 @@ td {
 
 cell.Header {
     font-style: italic;
-	background-color: #2244aa;
 }
 
 cell.Grande ~ .essai {
@@ -40,10 +39,25 @@ cell.Grande ~ .essai {
 
 cell.EncorePlusGrande ~ .grandecellule {
     font-size: 18pt;
+    background-color: #ddd;
 }
 
+cell.Heritage + cell.Bold {
+    padding: 0.3cm;
+    border: 0.75pt solid #333;
+}
+
+
 column.Longue ~ .longuecolonne {
-    width: 7cm;
+    width: 12cm;
+}
+
+column.Moyenne ~ .moyennecolonne {
+    width: 8cm;
+}
+
+column.Courte {
+    width: 4cm;
 }
 
 row.Entete {
diff --git a/demos/dev.html b/demos/dev.html
index 6670389..4c05478 100644
--- a/demos/dev.html
+++ b/demos/dev.html
@@ -14,12 +14,13 @@
 <script type="text/javascript" src="../src/js/opendocument/OpenDocument.Style.js"></script>
 <script type="text/javascript" src="../src/js/opendocument/OpenDocument.StyleManager.js"></script>
 <script type="text/javascript" src="../src/js/opendocument/OpenDocument.OdsConverter.js"></script>
+<script type="text/javascript" src="../src/js/Html2Ods.js"></script>
 <script>
 
 function fodsLink() {
 	let link = document.getElementById("link");
 	link.href = URL.createObjectURL(
-		OpenDocument.OdsConverter.convertToBlob("table")
+		Html2Ods.blob("table")
 	);
 	setTimeout(function () {
 		URL.revokeObjectURL(link.href);
@@ -28,7 +29,7 @@ function fodsLink() {
 }
 
 function fodsContent() {
-	document.getElementById("text").innerText = OpenDocument.OdsConverter.convertToXml("table");		
+	document.getElementById("text").innerText = Html2Ods.xml("table");		
 }
 </script>
 </head>
@@ -44,9 +45,9 @@ function fodsContent() {
 	data-od-fixed-columns="1"> 
 	<col data-od-style="Longue"> 
 	<colgroup> 
-		<col> 
+            <col  data-od-style="Courte"> 
 	</colgroup> 
-	<colgroup span="2" class="longuecolonne"> 
+	<colgroup span="2" class="moyennecolonne"> 
 	</colgroup>
 	<thead> 
 		<tr data-od-style="Entete"> 
@@ -70,18 +71,17 @@ function fodsContent() {
 			<div data-od-hidden="true">
 			Caché dans OD
 			</div> Test à des lignes vides </td> 
-			<td>Cellule 1.4</td> 
+			<td  data-od-style="Heritage">Cellule 1.4</td> 
 		</tr> 
 		<tr> 
-			<td colspan="2" data-od-style="EncorePlusGrande">Cellule 2.1 (Très grande)</td> 
+			<td data-od-style="EncorePlusGrande">Cellule 2.1 (Très grande)</td> 
 			<!--<td>Cellule 2.2</td>--> 
 			<td data-od-style="Bold">Cellule 2.3</td> 
 			<td data-od-type="number" class="grandecellule">-160</td> 
 		</tr> 
 		<tr> 
-			<td>Cellule 3.1</td> 
-			<td>Cellule 3.2</td> 
-			<td data-od-type="currency" data-text="1000">1000 €</td> 
+			<td colspan="2">Cellule 3.1</td> 
+			<td data-od-type="currency" data-od-text="1250">1100 €</td> 
 			<td data-od-type="currency" data-od-currency="USD" data-text="-1315" class="essai">-$2500</td> 
 		</tr> 
 	</tbody> 
diff --git a/src/js/Html2Ods.js b/src/js/Html2Ods.js
new file mode 100644
index 0000000..6967832
--- /dev/null
+++ b/src/js/Html2Ods.js
@@ -0,0 +1,12 @@
+/* global OpenDocument */
+
+var Html2Ods = {};
+
+
+Html2Ods.blob = function (table, options) {
+    return OpenDocument.OdsConverter.convertToBlob(table, options);
+};
+
+Html2Ods.xml = function (table, options) {
+    return OpenDocument.OdsConverter.convertToXml(table, options);
+};
diff --git a/src/js/opendocument/OpenDocument.OdsConverter.js b/src/js/opendocument/OpenDocument.OdsConverter.js
index 8788e2c..6191102 100644
--- a/src/js/opendocument/OpenDocument.OdsConverter.js
+++ b/src/js/opendocument/OpenDocument.OdsConverter.js
@@ -123,7 +123,11 @@ OpenDocument.OdsConverter.prototype.convert = function (table, options) {
     }
     
     function _getCellText(cellElement) {
-        let cellText = cellElement.dataset[textDataAttribute];
+        let cellText = cellElement.dataset["odText"];
+        if (cellText) {
+            return cellText;
+        }
+        cellText = cellElement.dataset[textDataAttribute];
         if (cellText) {
             return cellText;
         }
@@ -281,7 +285,7 @@ OpenDocument.OdsConverter.readTableColumns = function(table, styleManager) {
         let columnName = OpenDocument.COLUMNSTYLE_PREFIX + columnNumber;
         columnNumber++;
         let columnStyle = new OpenDocument.Style("column", columnName);
-        let originalStyleName = col.dataset["odStyle"];
+        let originalStyleName = _getColumnStyleName(col);
         if (originalStyleName) {
             let originalStyle = styleManager.getStyle("column-named", originalStyleName);
             if (originalStyle) {
@@ -296,6 +300,20 @@ OpenDocument.OdsConverter.readTableColumns = function(table, styleManager) {
         result.push(new OpenDocument.Elements.TableColumn(columnName, col.span, "Standard"));
     }
     return result;
+    
+    
+    function _getColumnStyleName(col) {
+        let styleName =  col.dataset["odStyle"];;
+        if (styleName) {
+            return styleName;
+        }
+        styleName = styleManager.getMatchingStyleName("column", col);
+        if (styleName) {
+            return styleName;
+        }
+        return "";
+    }
+    
 };
 
 
diff --git a/src/js/opendocument/OpenDocument.StyleManager.js b/src/js/opendocument/OpenDocument.StyleManager.js
index 4eaf001..0623a19 100644
--- a/src/js/opendocument/OpenDocument.StyleManager.js
+++ b/src/js/opendocument/OpenDocument.StyleManager.js
@@ -302,10 +302,11 @@ OpenDocument.StyleManager.readStyleSheet = function (styleManager, styleSheet) {
     }
 
     function _parseClass(classToken) {
-        if (!classToken.startsWith('.')) {
+        let dotIndex = classToken.indexOf('.');
+        if (dotIndex === -1) {
             return false;
         }
-        return classToken.substring(1);
+        return classToken.substring(dotIndex + 1);
     }
 
 };