Tableau Workbook (.twb)
These kind of files stores visualization without the source data. It means the user can visualize the data using different charts and store it in the workbook but can not store the data along with the visualization.
To open a workbook – Go to File > Open > Select Workbook. The workbook can also be present on your dashboard as in the image shown below.
Tableau – File System
Although it is very easy to use Tableau, there is a lot going behind the scene. There are many different file types that support the smooth working of Tableau. This structure of files makes it easy and reliable to perform the visualisation tasks. The types of Tableau files are listed as –