.QSK

.QSK file extension

This is the basic program to work with .QSK extension

Quintessential Player

Quintessential PlayerQCD Skin

Quintessential Media Player is a feature rich media player for Microsoft Windows. It supports all popular audio formats including MP3, WMA, Ogg Vorbis, and CDs. QMP is highly skinnable and has a robust plug-in architecture. It is easy to install and easy to manipulate... (more)

The program works with the following extensions: wma, wmv, avi, mp3, au, mpg, qsk, snd, wav, wax, asf, asx, wmx, wvx, cda, m1v, pls, m2v, m3u, mp1, mp2, ogg, xpl, mpa, fla, m3u8, flac, mpga, mpeg and audiocd

.QSK extension is also supported by the following programs:

Quintessential Media Player

Quintessential Media PlayerQMP Skin

Quintessential Media Player is a free audio player with many advanced options.
ZipZag

ZipZagQCD3 Skin

Handles Rar, Zip, Bz2, Ace, 7z, Iso, Cbr, Cbz, Tar, Cab, Jar, Msi, Pk3, Pak, Lzx.