diff --git a/code/east-datafile-utils/src/main/java/com/cpic/xim/east/utils/DataFileConverter.java b/code/east-datafile-utils/src/main/java/com/cpic/xim/east/utils/DataFileConverter.java
index 1f66de8..6de8782 100644
--- a/code/east-datafile-utils/src/main/java/com/cpic/xim/east/utils/DataFileConverter.java
+++ b/code/east-datafile-utils/src/main/java/com/cpic/xim/east/utils/DataFileConverter.java
@@ -2,7 +2,7 @@
  * @Author: Kane Wang <wangkane@qq.com>
  * @Date: 2025-08-09 01:09:26
  * @LastEditors: Kane Wang
- * @LastModified: 2025-08-11 11:15:35
+ * @LastModified: 2025-08-11 15:54:24
  * @FilePath: src/main/java/com/cpic/xim/east/utils/DataFileConverter.java
  * @Description:
  *
@@ -28,10 +28,14 @@ public class DataFileConverter
     private static Logger logger = LoggerFactory.getLogger( DataFileConverter.class );
 
     /**
+     * 将txt格式的east数据文件，转换成excel文件。
+     * 逐行转换，每行数据用split拆分。
+     * 使用SXSSFWorkbook格式的对象。用于转换超大规模excel文件。
      *
-     * @param eastDataFilePath
-     * @param xlsxFilePath
-     * @param spliterString
+     * @param eastDataFilePath east数据文件路径
+     * @param xlsxFilePath     输出的excel文件路径
+     * @param spliterString    数据单元正则表达式分隔符
+     * @param sheetName        sheet名称
      * @throws FileNotFoundException
      * @throws IOException
      */