https://community.blueprism.com/t5/Product-Forum/Excel-with-addin/m-p/52263#M7176 Looks like two options: 1) Start excel outside of excel vbo, then attach to that instance. 2) Google says you can load addin. Something like this in VBO: xlApplication.Workbooks.Open(xlApplication.LibraryPath & ""\MSQUERY\XLQUERY.XLAM"") Wed, 10 Oct 2018 14:00:00 GMT AndreyKudinov 2018-10-10T14:00:00Z https://community.blueprism.com/t5/Product-Forum/Excel-with-addin/m-p/52262#M7175 When open an Excel containing a add in with the Excel VBO the add in disappear, if I open the same Excel manually it contains the add in.  The addin contains code to be executed later on. Any ideas how to open the file without losing the add in? Tue, 09 Oct 2018 16:46:00 GMT https://community.blueprism.com/t5/Product-Forum/Excel-with-addin/m-p/52262#M7175 JonasKarlsson2 2018-10-09T16:46:00Z https://community.blueprism.com/t5/Product-Forum/Excel-with-addin/m-p/52263#M7176 Looks like two options: 1) Start excel outside of excel vbo, then attach to that instance. 2) Google says you can load addin. Something like this in VBO: xlApplication.Workbooks.Open(xlApplication.LibraryPath & ""\MSQUERY\XLQUERY.XLAM"") Wed, 10 Oct 2018 14:00:00 GMT https://community.blueprism.com/t5/Product-Forum/Excel-with-addin/m-p/52263#M7176 AndreyKudinov 2018-10-10T14:00:00Z