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Multi-Purpose Internet Mail Extensions (MIME) format (RFC822)
File type: Internet related file
Files with mime extension are often used for Multi-Purpose Internet Mail Extensions (MIME) file format format (RFC822). MIME is protocol used to transport non-text information across the Internet. The mime file contains encoded information about transported data. MIME format is used by variety of e-mail clients and web browsers.
File type category:
Internet related file
Date updated: June 27, 2025
File extension mime is related to MIME, the multi-purpose internet mail extension.
A protocol for transmitting non-text information across the Internet. Basically, non-ASCII data is converted to ASCII for transmission and then converted back at the receiving end. MIME encoding (originally mmencode and now mimencode) is typically used and is a replacement for uuencode since that encoding scheme does not translate across all mail systems. It is a very flexible format.
MIME messages can contain text, images, audio, video, or other.
MIME types:
application/mime
www/mime
message/rfc822
The mime file format is used by e-mail clients or Internet browsers.
Use compatible tools to export data from mime files to other formats.
Software applications that can open mime files:
Microsoft Windows
Apple macOS / Mac OS X
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