diff --git a/src/gen-charts.ts b/src/gen-charts.ts
index efe0c95e..a253b451 100644
--- a/src/gen-charts.ts
+++ b/src/gen-charts.ts
@@ -217,7 +217,11 @@ export async function createExcelWorksheet (chartObject: ISlideRelChart, zip: JS
 					strTableXml += `<tableColumn id="${idx + 1}" name="${idx === 0 ? 'X-Values' : 'Y-Value '}${idx}"/>`
 				})
 			} else {
-				strTableXml += `<table xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" id="1" name="Table1" displayName="Table1" ref="A1:${getExcelColName(data.length + data[0].labels.length)}${data[0].labels[0].length + 1}'" totalsRowShown="0">`
+				strTableXml +=
+					'<table xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" id="1" name="Table1" displayName="Table1" ref="A1:' +
+					getExcelColName(data.length + data[0].labels.length) +
+					(data[0].labels[0].length + 1) +
+					'" totalsRowShown="0">'
 				strTableXml += `<tableColumns count="${data.length + data[0].labels.length}">`
 				data[0].labels.forEach((_labelsGroup, idx) => {
 					strTableXml += `<tableColumn id="${idx + 1}" name="Column${idx + 1}"/>`