A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Clark misinformed you. The first step to remove an Add-in is to choose Tools>PowerPoint Add-Ins. Then select the add-in and click the minus sign to deactivate. Only after these steps should you move the file.
Likely, if you choose Tools>PowerPoint Add-ins now, nothing will show on the list. If so, move the file back to where it was, open PowerPoint, deactivate the Add-in, then remove it from the folder.