Excel export of TermCollection

As a terminologist, I would like to be able to export the entire termbase with all attributes to an Excel file so that I can edit it further in Excel.

AC:

In the language resources management, an additional option Export total Excel should be offered.

The Excel will look like the attached file. Rows without value for a certain attribute will be empty in the Excel

If column grouping and merged cells in the first row tend to cost more effort than a few hours, do not implement it at first.

If it is easy to group rows, group all rows by termEntry.

 Language column: use rfc5646 shortcut for values