1) Use ARROW KEYS and TAB KEY to navigate the spreadsheet.
2) Use the = KEY to open a formula edit box and ESC or ENTER to close it.
3) Remove = KEY from formula box before closing to evaluate formula.
4) Use SEPARATORS between column headings to resize column widths.

* This SpreadSheet engine has many configurable features as well as self contained debugging tools. If you would like to know more you may email me here.