Hi @v-qiaqi-msft ,
Thank you for responding. I will do my best to give you all the information you asked for so if I have misunderstood something please let me know.
This is how I make the collection

Then I have the Name column and the barcode column as lookups like so:

And as the source for the Pname which lookup is working 'Product' dataverse table it is a single line of text same for the barcode column.
But since we use lookup for the column to get the current information it makes the column in collection a table rather than a value like so

But the problem is that I'm not sure how to export all this data to an excel/csv file. Since it doesn't recognize it as a column text but a table itself. I have made a very shady workaround currently which works, but its very very shady. If you know how I can turn a csv file into an excel in power automate that could also help me resolve this issue. But I rather do it the proper way.