Excel exporting in Mendix

Hi Mendix community,   I have a question regarding the Excel export functionality in Mendix. We've been using our inventory app and always export data to Excel. Initially, the exports were in .xlsx format. However, a few weeks ago, all exports started coming out in .csv format. We haven't made any changes to the code, so this switch seems unexpected. Do any of you have an idea of how we could resolve this issue without having to modify the code and implementing a new module?   Appreciate your help, Mazin
1 answers

There are two types of buttons. One for Excel export and one for CSV export. See documentation here: https://docs.mendix.com/refguide/control-bar/

They do not convert themselves. So somebody most have changed those buttons in your model from one type to the other.