[Gretl-users] Problem with .xlsx files

Dear Gretl Developers, A colleague here at my work is trying to perform some regressions using .xlsx files but he is getting the following error messages: "Invalid argument for function" in the GUI "gretl_unzip_file: 'zip error: File not found or no read permission'" in the script output window I tried a lot of things to help him, but unfortunately I've got no success. The commands he is using are: open "C:\Users\...\Desktop\Dessazonalização Crédito\Teste XLS.xls" --rowoffset=148 --sheet="Gretl" open "C:\Users\...\Desktop\Dessazonalização Crédito\Teste XLSX.xlsx" --rowoffset=148 --sheet="Gretl" Please find attached a zip file (with files in xls and xlsx format) that can be used to reproduce the error. Best, Henrique Andrade