A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
The link I posted contains step-by-step instructions.
Other tutorials can be found with a Google search for "office 2010 mail merge tutorial"
For example
- Video on YouTube http://www.youtube.com/watch?v=cx6Ve-kwLxU
- Dummies series http://www.dummies.com/how-to/content/how-to-create-and-print-a-word-2010-mail-merge-let.html
- About.com http://wordprocessing.about.com/od/usingmailmerge/ss/How-To-Create-A-Microsoft-2010-Word-Mail-Merge.htm
If you get stuck with your project, feel free to ask.