A done file extension is related to post-install file format used by Cygwin. Seems like internal data file.
Software that open done file
DONE file extension - Cygwin post-install file format
What is done file? How to open done files?
File type specification:
The done file extension is associated with Cygwin, a set of powerful tools to assist developers in migrating applications from UNIX/Linux to the Microsoft Windows platform, developed by Red Hat, Inc.
The done file seems to be used for post-install internal purposes.
The default software associated to open done file:
Company or developer:
Red Hat, Inc.
Cygwin is a Linux-like environment and command-line interface for Windows. Cygwin was originally developed by Cygnus Solutions, which was later acquired by Red Hat. First release was in 1995.
List of recommended software applications associated to the .done 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 done file, edit done file, convert done file, view done file, play done file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with done file - Cygwin post-install file format
Click on the software link for more information about Cygwin. Cygwin uses done 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.).
