Formate video.
| Extension | File Description | Popularity | |
| .264 | Ripped Video Data File | Uncommon | |
| .3g2 | 3GPP2 Multimedia File | Very Common | |
| .3gp | 3GPP Multimedia File | Very Common | |
| .3gp2 | 3GPP Multimedia File | Average | |
| .3gpp | 3GPP Media File | Average | |
| .3gpp2 | 3GPP2 Multimedia File | Uncommon | |
| .3mm | 3D Movie Maker Movie Project | Average | |
| .3p2 | 3GPP Multimedia File | Average | |
| .60d | CCTV Video Clip | Uncommon | |
| .aep | After Effects Project | Average | |
| .ajp | CCTV Video File | Average | |
| .amv | Anime Music Video File | Average | |
| .amx | Adobe Motion Exchange File | Average | |
| .arf | WebEx Advanced Recording File | Average | |
| .asf | Advanced Systems Format File | Very Common | |
| .asx | Microsoft ASF Redirector File | Very Common | |
| .avb | Avid Bin File | Average | |
| .avd | Movie Edit Pro Video Information File | Uncommon | |
| .avi | Audio Video Interleave File | Very Common | |
| .avs | AviSynth Script File | Average | |
| .avs | Application Visualization System File | Uncommon | |
| .axm | AXMEDIS Object | Average | |
| .bdm | AVHCD Information File | Common | |
| .bdmv | Blu-ray Disc Movie Information File | Average | |
| .bik | BINK Video File | Average | |
| .bin | Binary Video File | Average | |
| .bix | Kodicom Video File | Average | |
| .bmk | PowerDVD MovieMark File | Average | |
| .box | Kodicom Video | Average | |
| .bs4 | Mikogo Session Video Recording | Uncommon | |
| .bsf | Blu-ray AVC Video File | Common | |
| .byu | Brigham Young University Movie | Average | |
| .camrec | Camtasia Studio Screen Recording | Average | |
| .clpi | Blu-ray Clip Information File | Average | |
| .cmproj | Camtasia Project File | Average | |
| .cmrec | Camtasia Recording | Average | |
| .cpi | AVCHD Video Clip Information File | Common | |
| .cvc | cVideo | Average | |
| .d2v | DVD2AVI File | Average | |
| .d3v | Datel Video File | Average | |
| .dat | VCD Video File | Average | |
| .dav | DVR365 Video File | Uncommon | |
| .dce | DriveCam Video | Average | |
| .dck | Resolume Deck File | Average | |
| .ddat | DivX Temporary Video File | Uncommon | |
| .dif | Digital Interface Format | Uncommon | |
| .dir | Adobe Director Movie | Average | |
| .divx | DivX-Encoded Movie File | Common | |
| .dlx | Sony VDU Video File | Uncommon | |
| .dmb | Digital Multimedia Broadcasting File | Average | |
| .dmsm | VideoWave Movie Project File | Common | |
| .dmsm3d | VideoWave 3D Movie Project File | Uncommon | |
| .dmss | VideoWave SlideShow Project File | Average | |
| .dnc | Windows Dancer File | Uncommon | |
| .dpg | Nintendo DS Movie File | Average | |
| .dream | Dream Animated Wallpaper File | Common | |
| .dsy | Besta Video File | Rare | |
| .dv | Digital Video File | Average | |
| .dv-avi | Microsoft DV-AVI Video File | Average | |
| .dv4 | Bosch Security Systems CCTV Video File | Uncommon | |
| .dvdmedia | RipIt DVD Package | Common | |
| .dvr-ms | Microsoft Digital Video Recording | Common | |
| .dvx | DivX Video File | Average | |
| .dxr | Protected Macromedia Director Movie | Average | |
| .dzm | DirectorZone Menu Template | Common | |
| .dzp | DirectorZone Particle Effect File | Common | |
| .dzt | DirectorZone Title File | Average | |
| .evo | HD DVD Video File | Average | |
| .eye | Eyemail Video Recording File | Average | |
| .f4p | Adobe Flash Protected Media File | Average | |
| .f4v | Flash MP4 Video File | Common | |
| .fbr | FlashBack Screen Recording | Common | |
| .fbr | Mercury Screen Recording | Uncommon | |
| .fbz | FlashBack Screen Recorder Movie | Average | |
| .fcp | Final Cut Project | Average | |
| .flc | FLIC Animation | Average | |
| .flh | FLIC Animation File | Average | |
| .fli | FLIC Animation | Average | |
| .flv | Flash Video File | Very Common | |
| .flx | FLIC Animation | Average | |
| .gl | GRASP Animation | Average | |
| .grasp | GRASP Animation | Average | |
| .gts | CaptiveWorks PVR Video File | Average | |
| .gvi | Google Video File | Rare | |
| .gvp | Google Video Pointer | Uncommon | |
| .hdmov | QuickTime HD Movie File | Common | |
| .hkm | Havok Movie File | Average | |
| .ifo | DVD-Video Disc Information File | Average | |
| .imovieproj | iMovie Project File | Common | |
| .imovieproject | iMovie Project | Average | |
| .iva | Surveillance Video File | Uncommon | |
| .ivf | Indeo Video Format File | Average | |
| .ivr | Internet Video Recording | Average | |
| .ivs | Internet Streaming Video | Average | |
| .izz | Isadora Media Control Project | Average | |
| .izzy | Isadora Project | Average | |
| .jts | Cyberlink AVCHD Video File | Average | |
| .lsf | Streaming Media Format | Average | |
| .lsx | Streaming Media Shortcut | Uncommon | |
| .m15 | MPEG Video | Rare | |
| .m1pg | iFinish Video Clip | Average | |
| .m1v | MPEG-1 Video File | Uncommon | |
| .m21 | AXMEDIS MPEG-21 File | Average | |
| .m21 | MPEG-21 File | Average | |
| .m2a | MPEG-1 Layer 2 Audio File | Uncommon | |
| .m2p | MPEG-2 Program Stream File | Common | |
| .m2t | HDV Video File | Average | |
| .m2ts | Blu-ray BDAV Video File | Average | |
| .m2v | MPEG-2 Video | Average | |
| .m4e | MPEG-4 Video File | Rare | |
| .m4u | MPEG-4 Playlist | Average | |
| .m4v | iTunes Video File | Common | |
| .m75 | MPEG Video | Rare | |
| .meta | RealPlayer Metafile | Uncommon | |
| .mgv | PSP Video File | Average | |
| .mj2 | Motion JPEG 2000 Video Clip | Average | |
| .mjp | MJPEG Video File | Average | |
| .mjpg | Motion JPEG Video File | Uncommon | |
| .mkv | Matroska Video File | Common | |
| .mmv | MicroMV Video File | Rare | |
| .mnv | PlayStation Movie File | Average | |
| .mod | Camcorder Recorded Video File | Common | |
| .modd | Sony Video Analysis File | Uncommon | |
| .moff | Sony Video Analysis Index File | Uncommon | |
| .moi | MOI Video File | Common | |
| .moov | Apple QuickTime Movie | Uncommon | |
| .mov | Apple QuickTime Movie | Very Common | |
| .movie | QuickTime Movie File | Uncommon | |
| .mp21 | AXMEDIS MPEG-21 Object | Average | |
| .mp21 | MPEG-21 Multimedia File | Average | |
| .mp2v | MPEG-2 Video File | Uncommon | |
| .mp4 | MPEG-4 Video File | Very Common | |
| .mp4v | MPEG-4 Video | Uncommon | |
| .mpe | MPEG Movie File | Uncommon | |
| .mpeg | MPEG Movie | Common | |
| .mpeg4 | MPEG-4 File | Rare | |
| .mpf | MainActor Project File | Rare | |
| .mpg | MPEG Video File | Very Common | |
| .mpg2 | MPEG-2 Video File | Rare | |
| .mpgindex | Adobe MPEG Index File | Average | |
| .mpl | AVCHD Playlist File | Average | |
| .mpls | Blu-ray Movie Playlist File | Average | |
| .mpv | MPEG Elementary Stream Video File | Average | |
| .mpv2 | MPEG-2 Video Stream | Rare | |
| .mqv | Sony Movie Format File | Average | |
| .msdvd | Windows DVD Maker Project File | Average | |
| .msh | Visual Communicator Project File | Average | |
| .mswmm | Windows Movie Maker Project | Average | |
| .mts | AVCHD Video File | Common | |
| .mtv | MTV Video Format File | Average | |
| .mvb | Multimedia Viewer Book Source File | Average | |
| .mvc | Movie Collector Catalog | Uncommon | |
| .mvd | Movie Edit Pro Movie File | Average | |
| .mve | Infinity Engine Movie File | Average | |
| .mvp | Movie Edit Pro Video Project File | Uncommon | |
| .mxf | Material Exchange Format File | Common | |
| .mys | Vineyard Captured Video File | Uncommon | |
| .ncor | Adobe Encore Project File | Average | |
| .nsv | Nullsoft Streaming Video File | Average | |
| .nvc | NeroVision Express Project File | Average | |
| .ogm | Ogg Media File | Common | |
| .ogv | Ogg Vorbis Video File | Average | |
| .ogx | Ogg Vorbis Multiplexed Media File | Average | |
| .osp | OpenShot Project File | Uncommon | |
| .par | Dedicated Micros DVR Recording | Uncommon | |
| .pds | PowerDirector Script File | Common | |
| .pgi | Video Recording File | Average | |
| .piv | Pivot Stickfigure Animation | Average | |
| .playlist | CyberLink PowerDVD Playlist | Average | |
| .pmf | PSP Movie File | Average | |
| .prel | Premiere Elements Project File | Average | |
| .pro | ProPresenter Export File | Average | |
| .prproj | Premiere Pro Project | Common | |
| .psh | Photodex Slide Show | Common | |
| .pssd | PhotoSuite Slide Show File | Uncommon | |
| .pva | PVA Video File | Uncommon | |
| .pvr | Wintal PVR Video File | Uncommon | |
| .pxv | Pixbend Media File | Average | |
| .qt | Apple QuickTime Movie | Uncommon | |
| .qtch | QuickTime Cache File | Average | |
| .qtl | QuickTime Link File | Average | |
| .qtm | Apple QuickTime Movie File | Uncommon | |
| .qtz | Quartz Composer File | Average | |
| .rcproject | iMovie '08 Project | Common | |
| .rdb | Wavelet Video Images File | Average | |
| .rec | Topfield PVR Recording | Average | |
| .rm | Real Media File | Very Common | |
| .rmd | RealPlayer Media File | Rare | |
| .rmp | RealPlayer Metadata Package File | Average | |
| .rms | Secure Real Media File | Average | |
| .rmvb | RealMedia Variable Bit Rate File | Common | |
| .roq | Id Software Game Video | Average | |
| .rp | RealPix Clip | Average | |
| .rts | RealPlayer Streaming Media | Average | |
| .rts | QuickTime Real-Time Streaming Format | Average | |
| .rum | Bink Video Subtitle File | Average | |
| .rv | Real Video File | Average | |
| .sbk | SWiSH Project Backup File | Average | |
| .sbt | SBT Subtitle File | Uncommon | |
| .scm | ScreenCam Screen Recording | Common | |
| .scm | Super Chain Media File | Rare | |
| .scn | Pinnacle Studio Scene File | Uncommon | |
| .sec | GuinXell Video File | Rare | |
| .seq | NorPix StreamPix Sequence | Average | |
| .sfvidcap | Sonic Foundry Video Capture File | Average | |
| .smi | SMIL Presentation | Average | |
| .smil | SMIL Presentation File | Common | |
| .smk | Smacker Compressed Movie File | Average | |
| .sml | SMIL Slideshow Presentation | Uncommon | |
| .smv | VideoLink Mail Video File | Uncommon | |
| .spl | FutureSplash Animation | Average | |
| .srt | SubRip Subtitle File | Common | |
| .ssm | Standard Streaming Metafile | Average | |
| .str | PlayStation Video Stream | Uncommon | |
| .stx | Pinnacle Studio Project File | Common | |
| .svi | Samsung Video File | Average | |
| .swf | Flash Movie | Very Common | |
| .swi | SWiSH Project File | Average | |
| .swt | Flash Generator Template | Average | |
| .tda3mt | DivX Author Template File | Average | |
| .tivo | TiVo Video File | Average | |
| .tix | DivX Video Download Activation File | Common | |
| .tod | JVC Everio Video Capture File | Average | |
| .tp | Beyond TV Transport Stream File | Average | |
| .tp0 | Mascom PVR Video File | Average | |
| .tpd | Cyberlink TOD Video File | Average | |
| .tpr | TMPGEnc Project File | Average | |
| .trp | HD Video Transport Stream | Common | |
| .ts | Video Transport Stream File | Common | |
| .tvs | TeamViewer Video Session File | Average | |
| .vc1 | VC-1 Video File | Average | |
| .vcpf | VideoConvert Project File | Average | |
| .vcr | ATI Video Card Recording | Uncommon | |
| .vcv | ViewCave Video File | Average | |
| .vdo | VDOLive Media File | Average | |
| .vdr | VirtualDub Signpost File | Average | |
| .veg | Vegas Video Project | Common | |
| .vem | Meta Media Video E-Mail File | Uncommon | |
| .vf | Vegas Movie Studio Project File | Common | |
| .vfw | Video for Windows | Uncommon | |
| .vfz | Creative Webcam Video Effects File | Average | |
| .vgz | DigitalVDO Compressed Video File | Average | |
| .vid | Generic Video File | Average | |
| .viewlet | Qarbon Viewlet | Average | |
| .viv | VivoActive Video File | Average | |
| .vivo | VivoActive Video File | Average | |
| .vlab | VisionLab Studio Project File | Average | |
| .vob | DVD Video Object File | Very Common | |
| .vp3 | On2 Streaming Video File | Rare | |
| .vp6 | TrueMotion VP6 Video File | Average | |
| .vp7 | TrueMotion VP7 Video File | Average | |
| .vpj | VideoPad Video Editor Project File | Average | |
| .vro | DVD Video Recording Format | Common | |
| .vsp | VideoStudio Project File | Average | |
| .w32 | WinCAPs Subtitle File | Average | |
| .wcp | WinDVD Creator Project File | Average | |
| .webm | WebM Video File | Average | |
| .wm | Windows Media File | Average | |
| .wmd | Windows Media Download Package | Average | |
| .wmmp | Windows Movie Maker Project File | Average | |
| .wmv | Windows Media Video File | Very Common | |
| .wmx | Windows Media Redirector | Average | |
| .wp3 | Microsoft Photo Story Project File | Average | |
| .wpl | Windows Media Player Playlist | Average | |
| .wtv | Windows Recorded TV Show File | Common | |
| .wvx | Windows Media Video Redirector | Average | |
| .xfl | Flash Movie Archive | Average | |
| .xvid | Xvid-Encoded Video File | Common | |
| .yuv | YUV Video File | Common | |
| .zm1 | ZSNES Movie #1 File | Average | |
| .zm2 | ZSNES Movie #2 File | Average | |
| .zm3 | ZSNES Movie #3 File | Average | |
| .zmv | ZSNES Movie File | Average |
