Unable to Show Data Tables in Excel Data Source
This could happen on machines with no Microsoft Office or Data Connectivity Component installed or if the Microsoft Office package is 64-bit version.
If running a data driven test on remote machine you get your test failed and the following exception could be found in the log:
The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine
Another option to face the same error in the application log is to bind an Excel file to a test, and try to select a sheet - the list is empty.
Download and install the 32-bit version of Microsoft Access Database Engine 2010. It will install the required drivers for communication between Test Studio and the Microsoft Office files for all of the above cases.