I don't understand why the author is using 'IronSpread' which is available on Windows only. For python there are modules like xlwt (www.python-excel.org) and op

I don't understand why the author is using 'IronSpread' which is available on Windows only. For python there are modules like xlwt (www.python-excel.org) and openpyxl (https://bitbucket.org/ericgazoni/openpyxl/ https://bitbucket.org/ericgazoni/openpyxl/) using which one can generate excel files from python.