Great Excel Resources

Acuity Training – The Search Engine Optimizers (SEOs) Guide To Excel

This guide contains explanations of the 29 functions that you need to know when working with data in Excel.

Ron de Bruin Excel Automation

This site has many articles, tips and tricks for working with Excel on Windows and Mac platforms.

Allen Wyatt’s Excel Tips

This is a great resource for working with Excel.  Alan has a daily “Excel Tips” mailing that I have enjoyed for years.