How to open .ARENA file extension?

If you cannot open a new file that has been saved in the .ARENA format you need to download the appropriate software. The manufacturer of .ARENA files is id Software; .ARENA files belong to the Game Files category. After downloading the application from the list available on our website just run an unknown file, and as the default set the newly installed application supporting the .ARENA files. Activities performed in the order described should solve the problems with all the files in the .ARENA format.

• What is .ARENA file?
• How to open .ARENA file?
• What is .ARENA file?