If the Excel cell format is not changing to a number because the Number formatting is not working, take these steps to fix the issue.

Excel has a surprising limitation that you may not discover until you try to enter more than 15 digits in a cell. The application can only store numbers with15 digits of precision.

Learn how to format numbers in Thousands, Millions, and Billions in Excel and Google Sheets. Use number Formatting to convert numbers.

Excel's conditional formatting lets you customize how your data displays, from changing colors and shading to adding icons and more. Here's how it works.

Conditional formatting highlights key information in a spreadsheet so it’s easy to see at a glance. This beginner’s guide gets you started using conditional formatting.

It's not easy to fool Excel, but with a few extra clicks, you can work around this odd pasting behavior. If you paste formatted values into a cell with another applied format, the pasted format wins.

Combine an Excel custom format with data validation and remove the pressure for input perfection from personnel by letting Excel do the work.

The latest update to Excel for the web brings new options for cell colors, cell formatting, and tables. There's also a new printing experience on the way.