Export data- column header name changed when a filter is used

Hi guys,

I have a table with severals column

A |B |Unity |C |D

There is a filter in the same page to select values of Unity. When I use this filter and export data to xlsx , the name of this column in the excel file has been changed to 'TabName'[Unity].

I would like that it displays only Unity

I tried to change the name of the column in the VALUES part of the table in Desktop.  I changed it to Unity Test and the problem is resolved. After that, I rechange to Unity and the problem came back.

I tried to change the name of the field on Power Query to Unity xxxx, put it in the table and change the name of the column to Unity but it didn't resolve the problem.

Do you know why and where can I unable this automatical change ? I will appreciate others solution If you have.

Thank you