csv2xlsx problems Ubuntu and MacOS 10.15

[Uwe Brauer]

Hi 

I usually use gnumeric, to export to xlsx (org-->csv-->xlsx), but I
cannot use gnumeric in my MacOS 10.15 and that is why I tried out
csv2xlsx.

While xlsx2csv works reasonable well, I have difficulties with csv2xlsx,
either in Ubutunu 16.04 with python 3.5 or MacOS with python 3.8.

So does anybody use xlsx2csv (googling show my various candidates, so
far only https://github.com/hyogeunpark/csv2xlsx.git
works but not the one I install via pip

Regards

Uwe Brauer