control+A-select all control+B-bold control+C-copy control+D-copy downwards control+F- find control+G-goto in particular cell control+H-find and replace control+I-italic control+k-hyperlink control+l-create list control+U-underline control+N-new workbook control+W-close entire workbook control+X-cut control+V-paste control+Y-redone control+Z-undo   insert comment in cell- Shift+F2 data validation-  alt+D+L current time-   ctrl+shift+  ; insert todays date-    ctrl +  ; conditional formatting-   alt+O+D current time and date-    […]