Basic functions are not (easily) available. Not sure if I am just completely overlooking it but I cannot find the number formatting option anywhere. I have looked it up on google and the location google says it is, I have checked, and it is not there. Also, you cannot easily switch between tabs, you have to check the blue check at the top before switching between tabs in one sheet. Another issue is that I cannot open the same sheet in two separate windows. Please advise!