
If the add-in was one that was automatically loaded when Excel first starts, you will get a message from Excel indicating that it cannot find your missing add-in file. Delete, rename, or move the add-in file.xlam, depending on your version of Excel. You can locate add-in files by their file name extension: either.



Whenever you install an add-in in Excel, it is added to an internal list of available add-ins.
