File Extension Library


.M1S File Extension

  • Developer by: Adobe Systems Incorporated
  • Category: Digital video and movie Files

What is an .M1S file?

.M1S file extension is created by Adobe Systems Incorporated. .M1S has been classified as Digital video and movie Files.

.M1S is MPEG-1 system stream

The m1s file extension is container format for multiplexing digital audio, video in MPEG-1 multimedia file format.

The m1s file contains multimedia data. It used to streaming to digital devices.

.M1S file format is deprecated and this file format is no longer supported.

Currently, .M1S file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

Use compatible tools to playback *.m1s files.

How to convert:

Compatible tools are able to export m1s files to other formats.

How to Open .M1S file on different platforms

Open .M1S File on Windows

  • Right-click a .M1S
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .M1S file and Select check box "Always use this app to open .M1S files" Press "Ok"

Open .M1S File on Mac

  • Right-click (or Ctrl + Left-click) the .M1S file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .M1S File on Linux

Right click on the .M1S file, choose "Open with" and select a program from the list above

Open .M1S File on iPhone

Select a file. If you don't see an application to open the .M1S file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .M1S File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .M1S files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .M1S files

  1. You need to update the application that you normally use to open .M1S files. Only the latest version of the software supports the current .M1S file format
  2. You need to check the .M1S file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)