Comments in Excel come in handy for documenting your spreadsheet so you can remember what all the formulas are for or to provide instructions for other spreadsheet users. The How-To Geek points out a ...

Calculating sales tax on prices is something you don't have to worry about if you use Excel. You can add a formula to the spreadsheet you use for invoices, bills of sale or quotes, and that's the end ...

Build flexible Excel functions that automatically handle blanks, defaults, and overrides without messy nested IFs.

Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories); ...