Enter > next column
Tab > next grid
click > drag > format
Ctrl+S - save workbook
Ctrl+O: Open Existing Workbook
Left/Right Arrow: Move one cell to the left or right
Ctrl+Left/Right Arrow: Move to the farthest cell left or right in the row
Up/Down Arrow: Move one cell up or down
Ctrl+Up/Down Arrow: Move to the top or bottom cell in the column
Tab: Go to the next cell
Shift+Tab: Go to the previous cell
Ctrl+End: Go to the most bottom right used cell
Ctrl+W: Close a workbook
Ctrl+O: Open a new workbook
Ctrl+Shift+Space: Select the entire worksheet