We recently completed our upgrade to PPM 9.32, and are noticing something odd with exporting portlets to Excel. For the majority of users the new export to Excel works as it should... i.e., user clicks the Export to Excel button from a portlet and the Excel file seamlessly pops up in .XLSX format.
For a small subset of users, however, attempting to export results in the old HTML to Excel is getting invoked, and the downloads are in .XLS format. When these same users attempt to export these exact same portlets using Chrome, there are no issues and a .XLSX file is generated.
Has anyone experienced anything like this, or does anyone have any suggestions or ideas what could be causing this?