Set timestamp on all .mkv files in this folder

hi fans! could one help me please? its long time i played around with windows batch - i just dont get it done, i want change the timestamp with:

mkvpropedit a.mkv --edit info --set “date=2000-01-01T00:00:00+01:00”

it works on one file but how can i write it in one process that it sets the timestamp in all 680 files in my folder (no matter what filenames they have???)?

i have it! thx anyway…

@echo off

if not exist mkvpropedit.exe goto file_not_exists

dir /s /b *.mkv > mkvs.txt

for /f “delims=” %%i in (mkvs.txt) do (
echo aktuelle datei: %%i
mkvpropedit.exe “%%i” --edit info --set “date=2000-01-01T00:00:00+01:00”

del mkvs.txt

goto eof

echo die mkvpropedit.exe existiert nicht im ordner!
goto eof