Download Tableau's installation program, when asked if you wish to store or open, respond with open. Then follow the intallation instructions. Accepting all the standard values is recommended.
Tableau is currently Beta software and as such is provided free.
The software possibly ( means it does ) contain bugs and will almost most certainly be incompatible with future versions. Sensible bug reports (judged by me) will result in a free production copy of Tableau.
Click here to start download of Tableau (1596k).
Use the system's control, select add / delete software. Find Tableau, then select delete.