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The File Extension Library

What is a file extension?

Short answer: it's the set of letters after the period (.) in the name of a file.

Long answer: File extensions signify the file format of a file. It tells the operating system (OS) how data was stored in the file. Not all OS, require a file extension though. For instance, this is optional in Unix, but is mandatory with MS-DOS and Windows systems.

In most file formats the file type is actually defined by the contents (first bytes, file structure), but extensions are used to define the application that is used for opening the file.

Below is a detailed database of thousands of file extensions our team has compiled for you. Feel free to browse!


Browse all Extensions:
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M2TS - Extension Details
Date Added: January 01, 1970
File Extension:  .M2TS
Description 1: M2TS is the file extension used for identifying Sony Bluray video stream files. Such filetypes are also produced by Sony camcorders. When saving video data on Bluray discs in highdefinition Bluray BDAV (Bluray Disc Audio/Visual) format, this file extension is utilized. Based on the MPEG2 transport stream, M2TS likewise supports 1080i and 720p formats.
Description 2: .M2TS file extension is linked with Bluray BDAV Video File. It is the video file that is saved in highdefinition Bluray BDAV format. .M2TS is based on MPEG2 transport stream and it supports 1080i and 720p formats. It is also used when saving video data on Bluray discs. BDAV is the abbreviation of Bluray Disc Audio/Visual, and .M2TS refers to MPEG2 Transport Stream. .M2TS file extension and BDAV are owned and developed by Sony.
File Type:   Movie, video, multimedia file
Mode: Binary
Program(s) to Open:  Windows: CyberLink PowerDVD Ultra, CyberLink PowerDirector, Sony Vegas Movie Studio Platinum, Sony Vegas Pro; Mac: Roxio Toast
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