=> Apply the outline border to the selected cells. [ Ctrl-Shift-& ]
=> Apply the Date format with the day, month, and year.[ Ctrl-Shift-# ]
=> Apply the Time format with the hour and minute, and AM or PM. [ Ctrl-Shift-@ ]
=> Enter the current time. [ Ctrl-Shift-: ]
=> Enter the current date. [ Ctrl-; ]
=> Hide the selected rows. [ Ctrl-9 ]
=> Hide the selected columns. [ Ctrl-0 ]
=> Alternate between displaying cell values and displaying formulas in the worksheet. [ Ctrl-` ]
=> Display the Find and Replace dialog box, with the Replace tab selected. [ Ctrl-H ]
=> Display the Insert Hyperlink dialog box for new hyperlink. [ Ctrl-K ]
=> Display the Print Preview window. [ Ctrl-F2 ]
=> Switch to the next workbook window. [ Ctrl-F6 ]
=> Display the Macro dialog box to create, run, edit, or delete a macro. [ Alt-F8 ]