.osu is a human-readable file format containing beatmap information. The first line specifies the file format version. The content is in sections. .osk files are extracted into the Skins directory. Knowing how to make skins and beatmaps accessible will help users. Use an archiver that makes .zip files.
Files with .osu extension are from the rhythm game osu!. Use osu! to open .osu files. Associate .osu files with the correct application. Right click an .osu file, choose “Open with” and select another program. Check “Always use this app”.
.osu files build into .osz files. These can be imported and run in osu!. .osz files extract into Songs. .osk files extract into Skins. Making archives recognised by osu! makes works accessible.
OSU files have a structure and purpose. They can’t be opened by any application. Below are tips on opening them and programs that support them. OSU files are used on 1 operating system. You may need different software depending on your system.
Osu!