the VLC media Player
the menu bar, click on Media and click on Convert/Save or press Ctrl + R on
window named open media will appear, with File selected.
on Add to add any audio or video file.
on Convert/Save or Press Alt + O
new window will appear.
settings, Make sure Convert is selected, on the profile, Select Video format or
audio format you want to convert to either MP4,WebM, MKV, FLAC, OGG or MP3.
go down to Destination File, Click on Browse and select where you want to save
the converted video file, type in the file name and Click on Save.
Click on Start, It will then begin converting the file, it will use the
timeline to move.
usually take almost the time of the video file.