.XMI

.XMI file extension

This is the basic program to work with .XMI extension

Winamp

Winamp Winamp media file

Winamp is an advanced audio and video player, which was released in 1997. It comes with a comprehensive list of features, including the ability to manage media files in your computer. Winamp can automatically scan selected folders and sub-folders in your computer to add audio/video files to its media library... (more)

The program works with the following extensions: mp3, mp4, wma, wmv, avi, flv, mpp, as, sf, xi, au, it, xm, caf, pvf, m4e, mp2, nst, kar, rmj, wpz, nsv, vlb, rmx, cmf, okt, m4a, w64, sdc, gmd, mpg, ptm, s3m, m4b, aif, sds, hmi, rmi, s3z, m4v, xpl, ape, hmp, snd, stm, b4s, asf, mpc, hmz, wav, stz, pls, fla, asx, wax, ult, sd2, mac, amf, mss, voc, dts, mat, far, mus, wmx, wal, mp+, cda, xmi, wpl, wsz, shn, m2v, itz, aip, wvx, xmz, mp1, wlz, m3u, mdz, med, aac, avr, ogg, mid, miz, dsm, mjf, apl, htk, ogm, mtm, raw, paf, vqf, mod, nsa, m3u8, mpeg, aiff, mids, flac, midi, audiocd and 669

.XMI extension is also supported by the following programs:

jetAudio

jetAudio Winamp media file

JetAudio Basic is a video and music player but it also can burn CD's,record,etc.
Miles Sound Tools

Miles Sound Tools Miles XMIDI sequence

Miles Sound Tools 7.2 is a package of utilities for adding sound to your games.