.$$$

.$$$ file extension

This is the basic program to work with .$$$ extension

QuickTime

QuickTime AutoCAD Emergency Backup Drawing

Includes support for the key media formats, such as H.264 and AAC. The QuickTime web browser plug-in is no longer installed by default and is removed if you have a previous version of QuickTime on your PC. If you still need this legacy plug-in, you can add it back using the custom setup option in the installer... (more)

The program works with the following extensions: swf, png, mkv, avi, psd, bmp, mp3, gif, mp4, jpg, jpeg, au, qt, mov, dv, gsm, mmv, pls, ulw, vfw, kar, pnt, wav, qcp, m15, qti, 3g2, qht, m4e, m1v, m1a, 3gp, tif, tga, m2v, m1s, m3u, qtl, mps, mid, m4a, qup, aac, rts, amc, amr, xpl, m4b, qif, ac3, bwf, mac, mp2, m4p, sd2, caf, jp2, m4v, dib, sdp, mpa, m75, sdv, cel, mpe, jpe, smf, dif, rgb, smi, sgi, mpg, mpm, aif, flc, rmi, mpv, pct, sml, fli, m2a, snd, mqv, pic, swa, aiff, pict, qhtm, moov, 3gp2, tiff, mpga, 3gpp, adts, midi, rtsp, cdda, pntg, qtif, mpeg, smil, mpg4, aifc, targa, m3url and movie