You're here because you have a file that has a file extension ending in .twbx. Files with the file extension .twbx can only be launched by certain applications. It's possible that .twbx files are data files rather than documents or media, which means they're not meant to be viewed at all.

A Tableau packaged workbook file is categorized as a data file used by the Tableau Desktop program, which was developed by Tableau Software with an integrated set of features useful for implementing functionalities deployed for whiteboard document visualization, research development and analysis. Unlike Tableau workbook files that are affixed with the .twb extension, these Tableau packaged workbook files contain the imported data itself and not just details that can be referenced by the Tableau Desktop software when a user views the content of these Tableau workbook files with the aid of this program. The content of a Tableau packaged workbook file is implemented with data encoding specifications used by Tableau Software for the TWBX file format. Affixed with the .twbx extension, the data stored in these Tableau packaged workbook files may include the actual workbook created by a user with the Tableau Desktop program along with other workbook files embedded by the user into the Tableau packaged workbook file. These .twbx files are also formatted using XML-based specifications.

Launch a .twbx file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .twbx file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .twbx files aren't yet associated with it. In this case, when you try to open a .twbx file, you can tell Windows which application is the correct one for that file. From then on, opening a  .twbx file will open the correct application. Click here to fix .twbx file association errors

Be careful not to rename the extension on .twbx files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

A file extension is the set of three or four characters at the end of a filename; in this case, .twbx. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.