.roff Troff document
Text & source code
| MIME type | text/troff |
|---|---|
| Description | Troff document |
| Category | Text & source code |
| Signature (magic bytes) | 27 2E 5C 22 ('.\")27 5C 22 ('\")2E 5C 22 (.\") |
| Based on | text/plain |
| Other extensions | .t, .tr |
Frequently asked questions
What is a .roff file?
A .roff file is a “Troff document” (MIME type text/troff).
How do I open a .roff file?
With any text editor – Notepad++, Visual Studio Code, or gedit and vim on Linux. The file contains readable text, possibly source code or configuration.
How can you tell a genuine .roff file?
By the bytes at the start of the file, the signature (magic bytes): 27 2E 5C 22 ('.\"), 27 5C 22 ('\") and 2E 5C 22 (.\"). On Linux and macOS, file --mime-type example.roff checks the real type regardless of the extension.
Which format is .roff based on?
Technically a .roff file is a subtype of “Plain text document” (text/plain), so programs for that base format can often read it too.
Which MIME type belongs to .roff?
The MIME type is text/troff. In the Apache web server: AddType text/troff .roff; in nginx: types { text/troff roff; }.