I am a beginner and this might be a repeated question, but I need some suggestions. I have created a dashboard using public tableau and excel data source. The excel data source will be updated every in quarter. Is it possible to update the data source within the dashboard using public tableau? I know this can be done in tableau desktop but I am not sure about public version. Any help is appreciated.
You can update the visualization locally and republish to Tableau Public. If you would like a live connection, there is an option to store the data in a google sheets document. See https://community.tableau.com/docs/DOC-9135#subhead191 for more information.