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.MIME File Extension

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File TypeMulti-Purpose Internet Mail Extension

DeveloperThe Internet Engineering Task Force
3.1 (8 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryEncoded Files


This file is saved in a binary format, which requires a specific program to read its contents.


Encoded file used by email programs; contains 8-bit encoded data, including characters other than the US ASCII character set; used to support file attachments and a richer character set instead of standard 7-bit messages that are normally sent over email.

More Information

MIME files can often be decoded using a file decompression utility if they are not first recognized by the email program.

MIME files are more commonly seen using a .MIM extension.

Program(s) that open .MIME files
Microsoft Windows LogoWindows
Smith Micro StuffIt Deluxe 2010
Corel WinZip 18.5
Microsoft Outlook 2016
Microsoft Outlook Express
Mozilla Thunderbird
Mac OS X LogoMac
Smith Micro StuffIt Deluxe 16
Microsoft Outlook 2016
Apple Mail
Mozilla Thunderbird
Linux LogoLinux
Updated 1/4/2011