Does XlWings works on pythonanywere? When I initialize a worksheet (wb = xw.Book(file_name)) I am getting this error:

xlwings.XlwingsError: Your platform only supports the instantiation via xw.Book(json=...)


The open source release of xlwings does not support Linux, which is what PythonAnywhere runs on.

I need a library allowing to write a Xlsb file. I have tried pyxlsb but it seems to be only able to read but not write into a Xlsb. Is there a library that I can use? Thanks a lot, I really appreciate it.

Try openpyxl or xlsxwriter (there are probably more packages supporting writing to the Excel format).