Apple's Numbers spreadsheet for Mac, iPhone, and iPad, is not as powerful as Microsoft Excel, but most users will be hard-pressed to find its limitations — and will immediately see how much easier ...

Use Microsoft Excel to calculate EBITDA (earnings before interest, tax, depreciation, and amortization) profit margin.

Learn how to use the Forms for Excel feature in OneDrive to create online surveys. You can create accurate surveys and quizzes with automatic marking.

When existing multiple sclerosis symptoms worsen, old ones recur, or new ones appear, you may be having a relapse. Learn more about MS flares.