Before you add any calculations or checkboxes, you need to tell Excel that certain columns (in my case, columns D, F, and G) will output a time by changing the data type for these cells.

Tgood37 asked the Answer Line forum how to add checkboxes to Excel spreadsheets, and make sure that checking a box will have an effect.

Want to highlight Cell or Row if a checkbox is selected? We show you hHow to highlight a Cell or Row with a Checkbox in Excel.

By default, Excel adds a checkbox in the middle. You can personalize it and add a unique touch. Right-click on a checkbox and select Format Cells from the context menu.

A check mark box in an Excel spreadsheet is handy for ticking off items, but it can go much further. Excel check boxes can trigger calculations and provide visual indicators. For example, in ...

Excel 2007's new Editing, Fill, Justify feature makes it easier to arrange text into a more readable layout.