Whole-column references in Excel are silent performance killers, often forcing the program to manage a range of over a ...

Whether you just closed a tab accidentally or have one in the back of your mind you need back, Command + Shift + T can get it back. Press it once to reopen your last closed tab, and keep pressing it ...

Discover how Excel's Goal Seek reverses calculations to find input values from known outcomes and enhances your data analysis skills.

PivotTables are still easier to create for anyone who prefers not to use formulas, and they excel at automatically grouping dates or handling large external datasets from sources like SQL Server or ...

Your photos are probably taking up a lot of valuable storage on your iPhone. Here's how to clean it up. Sareena was a senior editor for CNET covering the mobile beat, including device reviews. She is ...