A 3 file extension is related to the Unix unformatted manual page format.

There are 4 other file types using
the 3 file extension!

empty icon.3 - IBM Embedded ViaVoice voice type languages scripts data format

empty icon.3 - Solaris Device Configuration Assistant Boot Diskette file

empty icon.3 - GNU Screen log

empty icon.3 - ZX Spectrum picture image

3 file extension - Unix unformatted manual page

What is 3 file? How to open 3 files?

File type specification:

Document file type icon Document file type

The 3 file extension is associated with the roff, nroff, troff, groff text formatting and document processing systems integrated in the Unix operating system. The .3 file stores unformatted manual page file.

The default software associated to open 3 file:

Unix icon

The Open Group logoUnix  Linux/Unix software

Company or developer:
The Open Group

A multi-tasking operating system for various platforms, the first version of UNIX was released in 1969. It is developed by AT&T as well as various commercial vendors, universities and non-profit organizations. Traditional Original Unix systems have characteristics of Version 7 Unix or UNIX System V. Unix Specification have Mac OS X, Mac OS X Server, Solaris, AIX, HP/UX, z/OS etc. Other systems, such as Linux and BSD are called Unix-like or Unix system-like.

Help how to open:

Use compatible tools to work with *.3 files.

How to convert:

Probably can be exported to other formats.

List of recommended software applications associated to the .3 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open 3 file, edit 3 file, convert 3 file, view 3 file, play 3 file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with 3 file - Unix unformatted manual page

Click on the software link(s) for more information. Suggested software applications use 3 file type for internal purposes and/or also by different way than common edit or open 3 file actions.

Apple macOS / Mac OS X:


Main software associated with 3 file by default:
Unix small icon Unix
Other suggested software:
FreeBSD small icon FreeBSD
NetBSD small icon NetBSD

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