diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
index 12a63688f..1d8b39d05 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
@@ -915,7 +915,7 @@ public class ExcelUtil<T>
             // 对于任何以表达式触发字符 =-+@开头的单元格，直接使用tab字符作为前缀，防止CSV注入。
             if (StringUtils.startsWithAny(cellValue, FORMULA_STR))
             {
-                cellValue = RegExUtils.replaceFirst(cellValue, FORMULA_REGEX_STR, "\t$0");
+                cellValue = "\t" + cellValue;
             }
             if (value instanceof Collection && StringUtils.equals("[]", cellValue))
             {