Hi MitchFade1,
Thank you for posting your question in this community. From your description, you are trying to create a Flow in order to add a row to an Excel table from SharePoint site. In this this scenario, I suggest you can raise this question in Power Automate community where a lot of experts of Power Automate can provide more professional suggestions and ideas based on your requirements.
At same time, I also found some relevant information from Power Automate community which it may give you some ideas about it.
Excel Online (Business) - Add a row into a table
Add a row into table" in Power Automate
Insert and Update rows in Excel
Best regards,
Dihao