GEOS File Directory Entry Format Byte# Description $00 DOS file type Bit 7 File closed properly. Bit 6 File is write protected. Bits 0-2 File type 0 DEL 1 SEQ 2 PRG 3 USR 4 REL (Not permitted under GEOS) $01 Track number of first sector. $02 Sector number of first sector. $03-$12 File name. $13 Track number for info sector. $14 Sector number for info sector. $15 File structure. 0 Sequential structure. 1 VLIR format $16 GEOS file type. 0 Non-GEOS file. 1 BASIC Program. 2 Assembly program. 3 Data file. 4 System file. 5 Desk Accessory. 6 Application. 7 Application Data. 8 Font file. 9 Printer driver. 10 Input driver. 11 Disk Device 12 System Boot file 13 Temporary 14 Auto Executing 15 Input 128 The next few bytes define the time and date of the file's creation. $17 Year. $18 Month. $19 Day. $1A Hour. $1B Minute. $1C-$1D File size in blocks (including info sector).