Excel may return a serial number instead of a date; because it is stored thus in the backend. Learn how to convert Serial Number to Date.

It's easy to change the date format in Microsoft Excel. You just need to use the "Date" drop-down menu, which gives you plenty of options.

If numbers keep changing to dates automatically in Excel or if Excel changes dates to random numbers then this post will help you fix the issue.

Excel filters help you find exactly what you want, no matter how big your spreadsheet database is. Here's how to set number, text and data filters.