which indexes the offsets of the data chunks within the file. Files with this extension can. File extension.mp4, category, video File, description, mP4 files (mpeg-4 Part 14) are multimedia files. Upload your files to CloudConvert and we will do the job for you. What programs can I use to open an AVI file? The only official filename extension for mpeg-4 Part 14 files.mp4. Allplayer, apple QuickTime Player, microsoft Windows Media Player, videoLAN VLC Media Player. The CloudConvert, aPI offers the full functionality of CloudConvert and makes it possible to use the conversion services in your own applications. This sub-chunk is the file header and contains metadata about the video, such as its width, height and frame rate. MP4 can embed any data over private streams. Developed by Microsoft in 1992, it has become so widespread that many people consider it the de-facto standard for storing video and audio information. CloudConvert supports the conversion between more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats. Avi video/msvideo video/x-msvideo, useful links, more detail on the AVI file. AVI conversion: Choose from Google Drive, cancel, add example file, optional settings. MKV to AVI, MP4 to AVI, FLV to AVI, mpeg to AVI, MOV to AVI, WMV to AVI and many more.