[zion87]

Код:

@echo off
echo working
set n=0
set file=test.dxf
set temp=test.txt
for /f "delims=*" %%i in (' more +%n% %file% ') do call :1 "%%i"
:next
echo $ACADVER >>%temp%
echo   1 >>%temp%
echo AC1009 >>%temp%
echo   9 >>%temp%
for /f "delims=*" %%s in (' more +5 %file% ') do echo %%s >>%temp%
del %file% && ren %temp% %file%
exit
:1
set /a n+=1
set s=%1
echo %s:~1,-1% >>%temp%
if %n% == 5 goto :next