3T4 file extension is for Util3 Binary file converter to ASCII
Similar to 3T4
75 - Ventura Publisher 75x75 dots per inch display font file777 - Compressed file archiver 777
7z - 7-Zip format LZW compressed file
8 - Assembly language source code file A86
85 - 85x85 dpi display font Ventura Publisher
8BF - Adobe Illustrator Filter
8CM - 8 Channel Module Music
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