When you do a export from a straight table to Excel you except that the Totals will be included-
@Michael_Tarallo
as advised in at: https://www.youtube.com/watch?v=t2JWSzFVwh8
This idea had preciously 80 likes in the old community : https://community.qlik.com/ideas/4788#comment-69903
Note! This feature is available starting from Qlik Sense Enterprise February 2022 release.