1. To format any selected object, press ctrl+12. To insert current date, press ctrl+;3. To insert current time, press ctrl+shift+;4. To repeat last action, press F45. To edit a cell comment, press shift + F26. To autosum selected cells, press alt + =7. To see the suggest drop-down in a cell, press alt + down arrow8. To enter multiple lines in a cell, press alt+enter9. To insert a new sheet, press shift + F1110. To edit active cell, press F2 (places cursor in the end)11. To hide current row, press ctrl+912. To hide current column, press ctrl+013....
