Open Excel Workbook - Class Not Registered Error


Has anyone run into the issue related to opening an excel workbook from a designated path using the File Path and Open Excel Workbook actions? Below is a screen shot of the exact error message.

I am attempting to create steps required to open an existing, blank excel workbook then populate specific worksheets cells with data from a model object.

Currently, I am running Dynamo with Revit 2014 on a Windows 7 64-bit computer. Any help or guidance would be greatly appreciated.

Thanks in advance.

Greg W.


Hi Guys,

Can you try this same workflow with the latest development build ( Scroll to the bottom for the latest). We have done a bunch of bug fixes and performance improvements to the suite of Excel tools.




Hi Greg,

I get the same error - I filed this issue a few weeks ago.