Rather, it was an Excel dll i.e.xll, used by a third party Excel add-in software, Excel-DNA Add-In Framework for Microsoft Excel: Otherwise, download and install the latest version by accessing So,how accurate is this information? Note: It is worth making sure that you are using the latest version of the purchased product. Then go to the section - Enter the license key. Recommended activation method in this case: open the product interface, click on Help and Support  Change License. The newly purchased license does not lose its validity during the waiting period, its duration of use starts from the activation of the key in the product and not from the moment of its purchase. 'a) If you have already installed the type of ESET product purchased: Enter and activate the license key in the product only after the expiration of the existing one, in order to avoid any risk of losing the remaining interval of the old license. Something to mention however.as i mentioned before i already own a 2 year license for the AV.I was reading few minutes ago the mail received in June 2020 and i came across these info.