Solutions for Excel Unlicensed Product Issues: Excel programs are not only for the employees but also the home users use them a lot as well as students. The excel sheets are easy to save the accounting related content. If you have the unlicensed error messages on excel documents, then you cannot continue your work. It may also hamper your work with the unsaved sheets for this unlicensed excel related messages. Excel Unlicensed Product sheets are not only usable and nor that you can open your old sheets sometimes. It is because of the progressive stopped services. We have dealt with the excel sheets that throw unlicensed messages due to the incorrect license keys, inactive products, expired subscription, incorrect system date or time.