diff --git a/excel-importer/src/com/axonivy/util/excel/importer/ExcelReader.java b/excel-importer/src/com/axonivy/util/excel/importer/ExcelReader.java
index 66a8cfe..5c9ffd4 100644
--- a/excel-importer/src/com/axonivy/util/excel/importer/ExcelReader.java
+++ b/excel-importer/src/com/axonivy/util/excel/importer/ExcelReader.java
@@ -121,10 +121,8 @@ public static String getCellValueAsString(Cell cell) {
       return String.valueOf(cell.getBooleanCellValue());
     case FORMULA:
       return cell.getCellFormula();
-    case BLANK:
-      return StringUtils.EMPTY;
     default:
-      return "Unsupported cell type";
+      return StringUtils.EMPTY;
     }
   }
 }