Save a lot of time in Excel!

'Professor Excel Tools' extend your Excel with great new functions. The goal: Make you saving time. Help you with your every day work. Try it for free now - usually it's worth within the first days of use.

TickAdd more than 60 now 90 great functions to Excel

TickExtremely easy to use, lightweight

TickNo sign-up, no installation. Try it for free!

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(No sign-up, download starts directly, no installation)

Never forget your Excel passwords again!

Save your Excel passwords where you need them: In Excel. No more guessing - simply open your Excel workbooks with the password manager.

You got a new version of your file? Select from your saved passwords.

Yes, it can be that simple.

Learn more.

(No sign-up, download starts directly, no installation)

Free iPhone and iPad Apps

iPhone App: Professor's Daily Tips for Excel

Become an Excel export: Get one Excel tip every day. It just takes 3 minutes each day. And the best: It's entirely free. Why don't you try it now?

iPhone App: Professor's Error Helper for Excel

Solve any error in Excel. Just select the formula and the error message. You get a detailed description of how to fix the error.

Our Service for You

Knowledge area

Learn Excel and become an Excel expert: The large knowledge area provides a lot of tips, tricks and advice for you.

Excel facts

You probably don't know these facts about Excel... check them out now!


We offer a free newsletter once per month. It contains tutorials, facts and much more. 

Keyboard shortcuts

The more keyboard shortcuts you know, the more efficient you get.

Excel gifts

The perfect presents for every Excel user. Take a look at them!


Style your desktop with these free high resolution Excel wallpaper