Video Files Extensions - What are video files and how do I open a video file?

What are video files and how do I open a video file?

File Type Category File Format
.asf Video Files Advanced Systems Format File
.avp Video Files Avid Project File
.axm Video Files AXMEDIS Object
.dpa Video Files DrawPlus Animation File
.dzp Video Files DirectorZone Particle Effect File
.fbz Video Files FlashBack Screen Recorder Movie
.m2ts Video Files Blu-ray BDAV Video File
.mob Video Files MOBTV Video File
.mpv Video Files MPEG Elementary Stream Video File
.pds Video Files PowerDirector Script File
.psh Video Files Photodex Slide Show
.rcd Video Files pcAnywhere Recorded Session File
.rmd Video Files RED Metadata File
.sqz Video Files Squeeze Project File
.sub Video Files Subtitle File