- M
| # | ||
|---|---|---|
| 0 | .M - Objective-C Language Source Format | Apple |
| 1 | .M!95 - Adobe Director For Mac | Adobe Systems Incorporated |
| 2 | .M-JPEG - M-JPEG | N/A |
| 3 | .M01 - MicroStation Modification Resource | Bentley Systems, Incorporated |
| 4 | .M10 - Microsoft Money 2002 Data | Microsoft Corporation |
| 5 | .M11 - Microsoft Money 2003 Data | Microsoft Corporation |
| 6 | .M12 - Microsoft Money 2004 Data Format | Schiller |
| 7 | .M13 - Microsoft Media Viewer | Microsoft Corporation |
| 8 | .M14 - Microsoft Media Viewer | Microsoft Corporation |
| 9 | .M15 - Apple QuickTime Format | Moving Picture Experts Group |
| 10 | .M16 - Microsoft Money 2007 Data | Microsoft Corporation |
| 11 | .M1A - MPEG-1 Audiostream Format | N/A |
| 12 | .M1C - IBM Voice Type Languages Newuser | IBM |
| 13 | .M1I - IBM Voice Type Languages Newuser | N/A |
| 14 | .M1PG - IFinish Video Format | Media 100 |
| 15 | .M1S - MPEG-1 System Stream | N/A |
| 16 |