All instructions assume you have successfully installed the requirements.
Requires Python 3.
python extract_images.py /Volumes/OFFPRO_Z/EXCEL/EXCEL.EXE --png --ico --dir=./excel
will extract reconstituted ICO files as well as PNG files into ./excel.
python3 extract_diskettes.py excel_5_diskettes/*.img -d excel_5_diskette_contents/
will extract all files off the diskette images into excel_5_diskette_contents.
Requires msextract from libmspack
to be on your path. (On macOS, that tool compiles without any fuss if you have automake and autoconf installed.)
python3 expand_ms_compress.py --in-dir excel_5_diskette_contents/ --legacy-inf=excel_5_diskette_contents/EXCEL5.INF --out-dir=excel_5_expanded
will expand all underscorey files from your (previously extracted) Excel 5 diskettes into excel_5_expanded.