How to Convert Dates Stored as Text Into Dates. Working with large Excel files is sometimes a daily task when you run a small business.

Luckily, Excel offers handy formulas that allow you to convert text into upper case, lower case, title case, and even sentence case with minimal effort.

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.