Batch script to automatically save Aseprite file into layer images for easy import into external animation applications such as Spine and Spriter Pro. (Batch script has to be in same directory and same filename as Aseprite file)

export_aseprite_layers.bat

@echo off
@set ASEPRITE="C:\Program Files (x86)\Steam\steamapps\common\Aseprite\Aseprite.exe"
@set FILENAME="%~n0"

if exist %FILENAME% (
    choice /c YN /m "Would you like to delete and recreate '%FILENAME%' directory "
    if errorlevel == 2 goto save
    if errorlevel == 1 goto delete
    goto end
)

:save
echo Saving %FILENAME%.ase as %FILENAME%/{tag}.png...
%ASEPRITE% -b %FILENAME%.ase --trim --save-as %FILENAME%{tagframe0}/{tag}.png

echo Saving %FILENAME%.ase as %FILENAME%/{tag}/{layer}.png...
%ASEPRITE% -b %FILENAME%.ase --trim --save-as %FILENAME%{tagframe0}/{tag}/{layer}.png

ren %FILENAME%0 %FILENAME%

echo Finished saving images in %FILENAME% directory.
goto end

:delete
echo Deleting %FILENAME% directory...
rd %FILENAME% /s /q
goto save

:end
pause