EXTFILES -- "External Files Poll Handler". Adds no keywords to BASIC.
Extends the number of file types recognized by the HP-71.

Size: 502 bytes.

The HP-71 natively recognizes only BASIC, KEY, TEXT, SDATA, DATA, LEX,
and BIN file types, and refuses to copy files into memory (or from
disc to disc) if they are of any other type.  The FORTH ROM allows a
new file type, FORTH files, to be copied, and identifies these files
by putting "FORTH" into their catalog string.  The EXTFILES lexfile
takes this idea a step further. It makes just about every file type
known to the handheld community recognizable to the HP-71, and not
only allows it to copy them, it identifies them in their catalog
listing. No longer do we need to decipher file type code numbers.