Error after installing: The file format and extension of 'SeoTools32.xll' don't match


After installing SEOTools for Excel I receive the following error message:

The file format and extension of 'SeoTools32.xll' don't match. The file could be corrupted or unsafe. Unless you trust its source, don't open it. Do you want to open it anyway?

If I choose to open the file I just see malformed characters such as:

MZ��ÿÿ¸@���º�´ Í!¸�LÍ!This program cannot be run in DOS mode.

as Excel tries to open SeoTools32.xll.

I am using a laptop running Windows Enterprise version 1803. It is a 64-bit OS and a x64 based Intel i5 processor, I have 8GB or ram, .net 4.0, and Microsoft Office Professional Plus 2016, 64-bit.

I had SEOTools running on my laptop until my subscription ended in December and I uninstalled the tool.

Anyone have any ideas?


Did you use the MSI installer inside the zipped file? Looks like it tries to install 32 bit version of Seotools which is not compatible with your 64 bit system.


I did use the MSI. It was the only file in the zip package I downloaded using the and the button to download the latest version.
The file downloaded was:


Thanks, I've emailed you with a custom build. Let's take it from there.


Got it, thanks! I've got some stuff to finish in Excel before I am able to install the new build however I'll report back as soon as I am able. I appreciate the quick action and possible solution.


:computer::+1: That worked!! Thanks for your help!


Same problem as ATLDrew, please send a link to download 64 bit system. Thanky!


You can try this build: