$1 file extension is for ZX Spectrum file in HOBETA format




Similar to $1

$$P - OS/2 Notes file
$$S - OS/2 Spreadsheet
$00 - DOS Pipe file
$1 - ZX Spectrum file in HOBETA format
$D$ - Data OS/2 Planner
$DB - Temporary file dBASE IV
$ED - Editor temporary file MS C

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