Need Help in MS Excel official Template of Family Tree Generator

Hello everyone, please i need help in MS Excel official Template of  "Family Tree Generator"

You may download file and review from this link.

https://templates.office.com/EN-US/family-tree-generator-TM89758537?fbclid=IwAR15klXEdBULi_lz34npMEIi883Of3gea2OqqbRSKWhUf4Hky0uqPfqAlgg

There is 3 generations and i need 6 generations.