I have an excel add-in which is saved in xlam format. It was a free download and the company that made it is no longer updating it. I tried contacting them with no reply.
If I add the add-in to a workbook and open the Visual Basic for Applications editor to view the code, the project gives a "Project Locked - Project is Unviewable" error. When I try to use the add-in, the first dialog box for setting up the configuration is presented, but selecting an option says, "This license has already been expired. Please download new version."
Any advice on workarounds to allow the add-in to continue to work? Can I convert it to a zip file, edit something, and convert it back to an xlam?