To extract elements from a video then edit them and save them, this is a good tool.
There is a free trial and the paid version only costs $30.
Also offered on their website are a bunch of other useful low cost tools.
Audio extractor, image extractor, audio video editor – all in one tool.
This multipurpose video software is beneficial to perform almost all tasks that you could perform from a video file.
Detach Video into Images, Audio & Video