Hi, I have an issue with opening an ods-file (attached). The following error is thrown when trying to open the file (either via GUI or script): Interestingly, the xlsx-equivalent does not provoke an error and gets loaded properly. I am using a recent gretl snapshot from last week on Ubuntu. Just another minor thing: While drag-and-drop works for the xls(x) file type, it fails for ods. Might be a bug or simply not supported (which would be totally fine). Best, Artur