How to add a new Windchill group in excel?

[VladiSlav]

Please tell me how to perform the actions https://support.ptc.com/help/windchill/wc111_hc/whc_en/index.html#page/Windchill_Help_Center%2FWCCG_BusLogicCust_DTIFrameworkRibbon_WCCG_DTIFramework_ClientEx.html to have a new group " Windchill and buttons in Excel?

I added the code as in the documentation to all XML files, but the tab did not appear after restarting the server and clearing the cache.

Attach screenshots of files in XML format

[VladiSlav · Accepted solution]

The solution was found by accident, it turned out that you can download an extension that will automatically add Windchill groups to Microsoft programs