Код:
@Echo Off
Set "FileIn=Z:\Box_In\input.txt"
Set "OutFile=Z:\Box_Out\output"
Set "OutFileExt=txt"
Set /A N1=0
Set /A N2=2
FOR /L %%i IN (%N1%,1,%N2%) DO (
>"%OutFile%%%i.%OutFileExt%" (FOR /F "usebackq delims=" %%s IN ("%FileIn%") DO Call :Column "%%s" %%i)
)
GoTo :Eof
:Column
Set "@Str=%~1"
Call Set "@Str=%%@Str:~%2,1%%"
Echo %@Str%
GoTo :Eof
