You can change the date & time format in Google Sheets & Excel Online using this guide. Use different date & time formats in spreadsheets.

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.

The error "Too many different cell formats" in Excel occurs when the data in Excel exceeds the formatting limit. Here are some solutions to try.

The ramifications of missing a due date can range from simply adjusting the date to getting fired. Don't take chances with deadlines when a simple conditional format can remind you.