diff --git a/src/Luban.DataLoader.Builtin/Excel/SheetLoadUtil.cs b/src/Luban.DataLoader.Builtin/Excel/SheetLoadUtil.cs
index a45556ba..b6a2f741 100644
--- a/src/Luban.DataLoader.Builtin/Excel/SheetLoadUtil.cs
+++ b/src/Luban.DataLoader.Builtin/Excel/SheetLoadUtil.cs
@@ -159,7 +159,7 @@ private static bool TryFindTopTitle(List<List<Cell>> cells, out int rowIndex)
             {
                 break;
             }
-            string rowTag = row[0].Value?.ToString()?.ToLower() ?? "";
+            string rowTag = row[0].Value?.ToString()?.ToLower()?.Trim() ?? "";
             if (!rowTag.StartsWith("##"))
             {
                 break;
@@ -194,7 +194,7 @@ private static bool TryFindNextSubFieldRowIndex(List<List<Cell>> cells, int star
             {
                 break;
             }
-            string rowTag = row[0].Value?.ToString()?.ToLower() ?? "";
+            string rowTag = row[0].Value?.ToString()?.ToLower()?.Trim() ?? "";
             if (rowTag == "##field" || rowTag == "##var" || rowTag == "##+")
             {
                 rowIndex = i;