ASAP Utilities add-in for Excel

This is amazing and free, for non commercial use, add-in for Microsoft Excel.

It adds new menu with lot of tasks that would be impossible or would take lot of time, for example:
- Make duplicate entries blank
- Printing a Column in Multiple Segments on One Page
- Trailing negatives imported from ASCII file
- Deleting empty rows
- Delete rows based on cell contents
- Coloring every other row in a range
- Removing Carriage Returns in Excel
- Translate a comment to text in a cell
- Convert Excel imported numbers from text to numbers

http://www.asap-utilities.com/