Microsoft

All PC file names have a three letter extension that is the code for the type of file it is. Chart on next slide shows common extensions. Summer Session File Extensions E D T 3 2 1 * E D T 3 2 1 * COM, SYS, EXE Program INI Configuration BAK Backup WAV, AVA Sound XLS, WK4 Database GIF, JPG, BMP, TIFF Graphic TXT, DOC, PPT Text EXTENSION FILE ... ................
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