If you use date values in Excel, Pop-up Excel Calendar is worth a try. Pop-up Excel Calendar is an Excel COM add-in which will allow you to easily work with dates in Excel workbooks/templates.

One of the common problems many users encounter with Excel is incorrectly entering dates. People seem to get confused about entering dates. Should they enter dd/mm/yy or mm/dd/yy? Do they enter slashes or dashes or dots? And what was the date of the third Thursday in September last year anyway?

What you really need is Pop-up Excel Calendar!

For a quick example, click your mouse on a cell in which you must enter a date. An in-cell icon button appears. Click the icon button to display the calendar. Click the date you want to enter and you are done!

Requirements: