How do I perform an extract refresh outside of the workbook that created the workbook? I deleted the workbook that I used to create the extract. I can connect to the extract from a new workbook but I am unable to perform a refresh on the extract.
When you deleted the original workbook you deleted any connection between the original data source and the extract. As you say you can load the extract into Tableau, but since the connection is gone, T doesn't know where to go to look for a refresh. Sorry to say it looks like you'll need to start over.