Professor Excel

My Virus Scanner Detects a Threat. Is “Professor Excel Tools” Dangerous?

Virus Report of Professor Excel Tools

Virus report of Professor Excel Tools: 7 out of 57 virus scanners detect a threat.

Summary: No, there is no virus in Professor Excel Tools.

Professor Excel Tools offers a lot of features, some of them require some procedures that might be mistaken to be harmful.


  • The sharing features need to save a temporary file on the hard drive. After sharing, the temporary file is deleted.
  • Or the update function: When you click on “update”, it downloads the new version, installs it and deletes the old version. Some virus scanner mistake that for a “Trojan horse”.

To make it clear: There is no virus in Professor Excel Tools. We have no interest in harming you or your computer in any way. We earn money by selling one-of licenses. That’s it.

The website “VirusTotal” can check files and provide a summary. For Professor Excel Tools, 7 out of 57 virus scanning software might detect a threat. Or in other words: 50 out of 57 virus scanners don’t think Professor Excel Tools is harmful.

Here is the link to the report:

And unfortunately, also “Palo Alto Networks” blocks our file. If you use Palo Alto Networks, only your local administrators can approve Professor Excel Tools.

Uninstall Professor Excel Tools

You want to uninstall “Professor Excel Tools” or any other of our add-ins? First of all: Sorry to see you leave. If you have any comments or feedback, we appreciate a short message to Thank you!

Uninstalling Professor Excel Tools (or any other of our add-ins is quite simple).

  1. Close Microsoft Excel.
  2. Go to “Add or remove programs” in Windows. The fastest way is to press the Windows key and start typing “add or remove programs” until the regarding entry comes up. Alternatively type “Apps & features”.
  3. Now you should see the “Apps & features” window of Windows. Scroll down to “Professor Excel Tools” and click on it.
  4. Click on uninstall.
Uninstall Professor Excel Tools

Uninstall Professor Excel Tools

I want to update to a new version but it says that there is no new update available?

For initiating the update please click on About on the right hand side of the Professor Excel ribbon. If the version number (e.g. 1.1) is lower than the current version shown in the update text on this webpage (below), the update should start when you click on “Check for updates”.

Unfortunately, sometimes you’ll receive a message “No new updates”. In such case, please use the following workaround: Clear the cache of Internet Explorer.

  • Open Internet Explorer.
  • Open internet options by typing internet options by clicking on the small “gear” symbol in the upper right corner.
  • On the General tab, under Browsing history, click Delete. If you don’t want to clear all files click on “Settings” and then “Show files”. In the new window, search for “ProfExToolsCurrentVersion.htm” and delete it.

Try starting the update again. Please contact us if the problem still persists at

We are working on a solution and in the meantime we apologize for any inconvenience.

What do I get when I buy the full version?

When you buy the full version, you will get a licence key. With this licence key you can unlock the full and unlimited version of Professor Excel Tools.

However, you won’t get access to the underlying source code and VBA macros.

The purchase process is handled via Clicking on the Purchase button will guide you to the site.

I’ve purchased a licence for the full version but didn’t get a new download file

When purchasing a licence for the full version you’ll get a licence key. With this licence key you can unlock the full version. Therefore, go to About within the Info section. Then click on unlock and enter your licence key.

The software is the same as the trial version. Only the trial version expires after 31 days after the first usage. You can redownload the trial version any time and enter your purchased licence key again.

The ribbon of Professor Excel Tools doesn’t appear

You’ve once seen the ribbon of Professor Excel and after reopening Excel it’s gone?

Try to add ‘Professor Excel Tools’ again:  You can redownload it from here: Then follow the steps shown in the Quick Install Guide (see download link below).

Everytime I open Excel, it says Professor Excel Add-In can’t be found

Have you deleted or moved the file Professor-Excel-Tools.xlam?

You should do two steps:

  1. Remove the previous link to the add-in. Therefore open Excel, click on ‘File’ –> ‘Options’ –> ‘Add-Ins’. Make sure that ‘Excel Add-Ins’ are selected and click on ‘Go’. You’ll see a list of add-ins. Click on ‘Professor Excel Tools’. You’ll be asked if you want to remove the add-in. Click ‘Yes’.
  2. Add ‘Professor Excel Tools’ again.  You can redownload it from here: Then follow the steps shown in the Quick Install Guide (see download link below).