qixiaobin0715

@echo off
set letters=A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
setlocal enabledelayedexpansion
for %%i in (*.*) do (
    set "str=%%~ni"
    for %%a in (%letters%) do set "str=!str:%%a=%%a!"
    if not "%%i"=="%~nx0" ren "%%i" "!str!%%~xi"
)
pause
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