Hi Marc,
First of all, I presume this new workstation has MS Excel configured correctly.
It's possible to configure Adagio to re-direct ExcelDirect to a CSV file or Open Office or another output source. Perhaps this is the case here? On our website is a tech tip for
how to work with Excel Direct in Adagio. Perhaps this can be helpful as to what's happening here.
The above would be the case no matter what is sent to Excel Direct, include grid contents. Perhaps try exporting say the Account Grid list to Excel, presuming that the Adagio User is set up to allow Excel Direct - the option is called Enable SF Export.