The Tableau packaged workbook file is a data file with .twbx extension.
The packaged workbooks contain a Tableau workbook along with supporting local file data sources or .hyper files grouped together in one package. You can publish a packaged workbook from Data Integration to Tableau. A workbook can either contain a worksheet or a dashboard.
When you extract data from the source into a .hyper file, you can apply a predefined Tableau workbook (TWB) template to the extracted data to create a Tableau packaged workbook (TWBX) in Data Integration. The TWB template file is custom made to perform specific analysis on the extracted source data and populates graphs and charts to represent the data. You can publish the TWBX file to Tableau and further modify the generated graphs according to your business needs.