MSG file format
| Extension | .msg |
| Category | documents |
| Programs | Microsoft Outlook (Windows) File Viewer Plus (Windows) Encryptomatic MsgViewer Pro (Windows) BitDaddys Email Open View Pro (Windows) EZ Freeware Free Opener (Windows) Mozilla SeaMonkey (Windows, Mac OS, Linux) eM Client (Windows, Mac OS) Kupon.BG Klammer (Mac OS) 45RPM MailRaider Pro (Mac OS) Kupon.BG Klammer 3 (iOS) File Viewer for Android (Android) |
| Main program | Microsoft Outlook |
| Description | The MSG file extension is a Microsoft creation designed specifically for Outlook email communication. It's intended to enhance email interactions within Microsoft's ecosystem. Each Outlook message creates an MSG file automatically. This file contains crucial data from the sent email and details about the message. Software capable of accessing these files typically relies on the Microsoft Messaging Application Programming Interface (MAPI). |
| Technical details | While an MSG file is a complex text document, it's not readable by simple tools like Notepad or word processors. These messages are in binary format, which enables interaction with applications compatible with the Microsoft Messaging Application Programming Interface (MAPI). This format limits its usability across different email platforms. Saving a message automatically generates an MSG file. The file's complex structure and unique format are beneficial for Microsoft email users. |
| MIME type | application/vnd.ms-outlook |