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 ...

Microsoft added a bunch of useful capabilities to Excel this month, including one that was highly requested by customers.

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

Calculate percentiles and z-scores for a child's Blood Pressure. Display pediatric reference curves.

The bet calculator allows you to input your stake & odds in American formats to quickly calculate the payout for your bets.