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

Switch from manual entries to automated generators that keep your spreadsheets clean, consistent, and error-free.

Glide turns an Excel spreadsheet into an inventory app; computed columns replace formulas, giving live stock-on-hand totals across tables.

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 ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...