M7 file extension is for Sound Farallon's MacRecorder format sampling rate 7k
Similar to M7
000 - Compressed harddisk data DoubleSpace001 - Fax Hayes JT FAX many
075 - 75x75 dpi display font Ventura Publisher
085 - 85x85 dpi display font Ventura Publisher
091 - 91x91 dpi display font Ventura Publisher
096 - 96x96 dpi display font Ventura Publisher
0B - Printer font with lineDraw extended character set PageMaker
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