.TWBX File Extension
File TypeTableau Packaged Workbook
What is a TWBX file?
Data file created by Tableau Desktop, a whiteboard data visualization and analysis program; contains the .TWB workbook plus all workbook data, including the external source data; used for packaging all data into a standalone file, which can be shared with others.
TWBX files differ from TWB workbook files, which only store references to the external data sources, not the external data itself.