There are 2 file types use the .MIM file extension:
1. Multi-Purpose Internet Mail Message File
An MIM file is an encoded file used by email programs that contains 8-bit data or other characters besides the US ASCII character set. It is used to support 8-bit content, such as file attachments, instead of standard 7-bit messages that are normally sent over email. MIM files typically includes the MIME version, the content type, and the encoding method.
MIM files may either appear as part of an email message, or they may be included as a separate attachment. They are often automatically decoded by email programs, but can also be decoded using a separate decoding utility.
Updated: June 5, 2016
2. Keyboard Layout Definition File
A MIM file is a keyboard layout definition file used by IBus (Intelligent Input Bus), which enables multilingual keyboard strokes to be input in Unix operating systems. It stores a configuration of a keyboard in plain text that is used to define the mapping between keyboard strokes and functions performed in Linux. MIM files may include letters, numbers, special characters, typographical symbols, and unusual diacritics.
latn-conk.mim - A MIM file that contains a keyboard layout created for users that enjoy constructing languages.
Updated: July 21, 2020