javascript - Lotus-1-2-3 (wk1) file parsing guidelines -

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i'm trying make little converter wk1 (lotus-1-2-3) files excel friend. files have simple data, no functions or complicated.

i couldn't find related guidelines parse or documentation of wk1 file structure. tried going through libreoffice code c++ rusty (academic level, 6 years ago).

i code in php , javascript, , didn't find related these languages.

i believe read somewhere lotus-1-2-3 abandonware now, don't think "illegal" or anything.

is there information available this? best approach "decoding" data (other give up)?

thanks

for me there no reason re-invent wheel...

there free software can convert these files.
available portable app , has command- line parameter convert between formats:
soffice --headless --convert-to <targetfileextension>:<nameoffilter> file_to_convert.xxx

so if need "own" program: package portable version of libreoffice , make nice interface select source , target file , run command line...


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