Microsoft Excel's Formula by Example helps automate repetitive tasks in structured tables in Excel for the Web. The tool is ...

DATEDIF(), which means Date + Dif, is a compatibility function left over from Lotus 1-2-3 that Microsoft adopted in Excel version 2000. It's fallen off current Excel menus, but you can still use it.

How to use VLOOKUP in Excel; Dynamic Date Lists with Formulas. Formulas provide a dynamic and automated way to generate date lists that adjust automatically when your data changes.

Smartsheet's Gantt chart template lets you input the dates for each assignment and choose their completion percentage. When you increase the percent completed, the shade of green turns darker.