Hi @GDBarkin,
Based on your description of the requirements, you want to get Dynamic records of the latest date update and put them in an Excel, then download it, right?
Here I show you a flow configuration that gets entity records and updates in excel, you can configure your flow according to the following screenshots:
Step 1: Get the records of Dynamic every week.
Step 2: Get the rows present in the Excel table that you want to store records, and clear the table.

Step 3: The newly updated records were selected.
For example, I set seven days here and stored them in excel.
formatDateTime(item()?['modifiedon'],'dd-MM-yyyy') is greater or equal to addDays(utcNow(),-7,'dd-MM-yyyy')
Step 4: As you described before, there are ten entities, so you need to create ten similar flows, or you can add branches by clicking Cross button in the Red box.
You can have a try. If there is any problem, please contact us.
Best Regards,
Community Support Team _ Lin Tu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.