File Extension M1S

.M1S File

File extension: M1S
File type: MPEG Media File


Notes about the M1S file extension:



To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The M1S file type is primarily associated with 'MPEG Media File'.

Detailed information for file extension M1S:


Primary association: MPEG Media File
Related links: QuickTime



To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

Technical data

To view technical data on file-extension M1S click this link to expand/hide the additional area.

System Info for File Extension .M1S

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: QuickTime.m1s, FileType: MPEG video/audio stream, AppName: QuickTime Player
EXEFile: QuickTimePlayer.exe

ProgramID: QuickTime.m1s, FileType: MPEG video/audio stream, AppName: QuickTime Player Application
EXEFile: QuickTimePlayer.exe

ProgramID: mpegFile
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe /Open %L

ProgramID: QuickTime.m1s
EXEFile: %ProgramFiles%\QUICKT~1\QuickTimePlayer.exe %1

ProgramID: QuickTime.m1s
EXEFile: C:\QUICKT~1\QuickTimePlayer.exe %1

ProgramID: QuickTime.m1s
EXEFile: %ProgramFiles%\QuickTime\QuickTimePlayer.exe %1

ProgramID: mpegFile
EXEFile: %ProgramFiles%\Media Player Classic\mplayerc.exe

ProgramID: mpegfile
EXEFile: %ProgramFiles%\Windows Media Player\wmplayer.exe /prefetch:9 /Open


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