OSK file format description

Many people share .osk files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .osk file can be edited, converted or printed with. On this page, we try to provide assistance for handling .osk files.

1 filename extension(s) found in our database.

.osk - Osu! Skin File

The OSK game data files are related to Osu!. The OSK file is an Osu! Skin File. Osu! is a freeware rhythm game originally for Microsoft Windows.

Game Data files
- / -
Osu! Skin File related extensions:
Foldit Puzzle Setup Data
Castle of the Winds Data
Train Simulator Activity Data
Oddworld: Abes Oddysee Data
League of Legends Replay File
Dragon Age Toolset Head Morph

Naturally, other applications may also use the .osk file extension. Even harmful programs can create .osk files. Be especially cautious with .osk files coming from an unknown source!

Can't open a .osk file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .osk file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

isk, ksk, lsk, ok, oks, os, osl, osm, oso, osu, psk, sk, sok

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

ObjectScript Source Code
Liskell Source Code
Slovak Language Info File
Dot OK MD5 Hash
Open Shading Compiled Object
Open Shading Language Source

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you have useful information about the .osk file format, then write to us!

DataTypes.net >> OSK file