Files with 2 extension are used by the Unix operating system. They store some document data.
2 file extension - Unformatted manual page (Roff/nroff/troff/groff) file
What is 2 file? How to open 2 files?
File type specification:
The 2 file extension is associated with the Unix operating system Roff text formatting program and with its other variants nroff, troff, groff. The .2 file contains unformatted manual page created in the Roff.
The default software associated to open 2 file:
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.
List of recommended software applications associated to the .2 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 2 file, edit 2 file, convert 2 file, view 2 file, play 2 file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with 2 file - Unformatted manual page (Roff/nroff/troff/groff) file
Click on the software link for more information about Unix. Unix uses 2 file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).