Hi @Miha ,
I suggest you check if you're using 32-bit version of Office, you can go to File- Account- About Excel:
If you're using 32-bit version of Office, try to change to 64-bit. 64-bit applications can access more memory than 32-bit applications (up to 18.4 million Petabytes).
You can also try to disable all add-ins: Click File > Excel Options > Add-Ins on the left side of the dialog. Then click the drop-down arrow at the bottom of the dialog box and select "COM Add-Ins" from the list, then click the GO button. What comes up is a list of COM-Add Ins that are loaded and running.
Any updates please let me know and I'm glad to help you.
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