.OSR File

File extension osr is mainly associated with osu!, a free rhythm game for Microsoft Windows operating system.

It seems that .osr file contains recorded game sequence in binary file format that can be replayed directly in the osu! game.

Files with osr extension are almost always game replays from the osu! rhythm computer game for Windows.

How to open:

Only osu! can open and playback .osr replays.

How to convert:

osu! doesn't support any option to export .osr files to other formats., so if you want to produce a video, you will have to playback the replay and use screen recording software.