After downloading an add-in file, the Add-ins Manager must be used to install it. Add-ins files have extension .xla or .xlam (for Excel 2007 and newer). The Econ Chart Enhancer add-in has options for ...

The issue can also occur due to a problematic add-in. In Microsoft Excel, you can install add-ins to make your work easier. Sometimes, these add-ins cause conflict with Excel due to which the ...