Data validation in Excel lets you restrict what can be entered into a cell, whether whole numbers, decimals, dates, or a certain number of characters. However, one of the most powerful capabilities of ...

Is Excel's Clean Data button the ultimate time-saver for messy spreadsheets? Find out how it works, its quirks, and how it compares to Power Query ...

The simplest way to add an apostrophe before a date in Excel is to type it directly before the date when entering it in a cell. This method works best when you’re dealing with a small number of ...

REDUCE allows you to iterate through your data, building your result step-by-step, in the same way a loop operates in a ...

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Michael Boyle ...