Issues in export to excel (.xlsx)

[nalzate]

Hello, using the "export excel" function in the view "/view_all_bug_page.php" downloads an .xml file, the question is why it does not download an .xls format.

[atrol]

Check this issue for the reason, the current state and possible workarounds
https://www.mantisbt.org/bugs/view.php?id=12484

[cas]

You can open the xml with excel so no issue