Learn how to type or insert the sum (Σ) symbol in Excel to make your spreadsheets cleaner and easier to read. Perfect for ...

Learn how to quickly calculate Year-to-Date (YTD) values in Excel using Pivot Tables — a simple trick that saves time and ...

The decision to forgo a traditional subscription fee came from a simple realization: "We’re competing with spreadsheets… and ...

Find historical weather by searching for a city, zip code, or airport code. Include a date for which you would like to see weather history. You can select a range of dates in the results on the next ...