If you need a free app that can convert between several pre-set video formats with a few clicks, https://www.pcworld.com/downloads/file/fid,155766/description.html is ...

If you want to convert a file from one format to another file format, then use AVS Document Converter. It is a free all-in-one document converter that can read multiple formats and convert them to ...

Usually, when you have a video file on your iPad or iPhone, the file can play on that device—why else would it be there? But occasionally you’ll run into a need to convert a video file, like I did ...