Slow Excel Tables

Hi everyone. I have a macbook pro 2015 late. This macbook is supposed to be very fast on any office 365 programs :( That's why i bought it. I'm working on excel, making tables. The problem is the table that I made is very slow while filling the cells. i always get rainbow and sometimes wait 1 minute to continue( Just open the excel my excel table and click POLİKLİNİK TABLOSU and go last line. After that try to fill cell by sell like others. By the way sorry this table is Turkish ) . After that i try to save it. But guess, what rainbow again :( I don't know what to do . I feel stuck in it. I tried to reinstall office. Nothing changed. I also tried this table with brand new macbook pro 2017 :( It is still slow . Please help me. If i can't solve this problem, I will have to sell my mac and return the windows :( I tried everything i know. Please help me. İf necessary i can send this table via mail :)