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Date: Thu, 22 Sep 2022 19:29:41 +0800
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---
 src/MiniExcel/Utils/ReferenceHelper.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/MiniExcel/Utils/ReferenceHelper.cs b/src/MiniExcel/Utils/ReferenceHelper.cs
index 4cd2db7..acfe5a4 100644
--- a/src/MiniExcel/Utils/ReferenceHelper.cs
+++ b/src/MiniExcel/Utils/ReferenceHelper.cs
@@ -72,7 +72,9 @@
 	   /// <param name="row">The row, 1-based.</param>
 	   public static bool ParseReference(string value, out int column, out int row)
         {
-            column = 0;
+			//2022-09-22 参数统一转换为大写，避免传入小写的参数时出错
+			value = value.ToUpper();
+			column = 0;
             var position = 0;
             const int offset = 'A' - 1;