Have him follow the link in the message and download and install the Microsoft Access Database Engine 2007. That will allow him to connect to xslx files (and not just xls).
Tableau Drivers download page: http://www.tableausoftware.com/support/drivers
Microsoft driver needed: http://www.microsoft.com/en-us/download/details.aspx?id=23734
You need to install appropriate drivers related to the datasources you are connecting to, since I 've just reproduced the issue at my end with MYSQL. The person whom you are sending the .twbx file do not have drivers being installed on the system, so suggest you to install them.
If you are thinking that because workbook has been saved in .twbx format it should be opened in others system then you need to first create an extract and then send the .twbx file.
I have Office 2013, downloaded this driver: Download Microsoft Access 2013 Runtime from Official Microsoft Download Center and experience the same message when trying to connect to an Excel file. Please help. Thanks!
For all versions of Tableau:-
Microsoft Access Database Engine 2007
For connecting to:
- Excel 2007 and 2010
- Access 2007 and 2010
*Only required if you do not already have Office 2007 or 2010 installed, or if you have the 64-bit version of Office 2010 installed.