diff --git a/README.en.md b/README.en.md
index f4667ba..1cec28a 100644
--- a/README.en.md
+++ b/README.en.md
@@ -28,6 +28,7 @@ A simple and user-friendly Spine file viewer and exporter with multi-language su
 * Automatic resolution batch export.
 * FFmpeg custom export support.
 * Program parameter saving.
+* File name extension association.
 * ...
 
 ### Supported Spine Versions
diff --git a/README.md b/README.md
index 8d4e8e9..639faab 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@
 - 支持自动分辨率批量导出
 - 支持 FFmpeg 自定义导出
 - 支持程序参数保存
+- 支持文件后缀关联
 - ......
 
 ### Spine 版本支持