Hi Sandy,
Seems no OOTB way at this moment.
Since you have got the script about gathering all the workflow status, a thought is that, you can then save the results as items into a SharePoint list using PowerShell,
then you can use the OOTB feature “Export to Excel” to get the report you request.
Best regards,
Patrick
Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact
tnmff@microsoft.com