Sometimes the easiest thing to do is to create a temporary entity that matches the structure of your Excel data, and import to there. Then you can create a microflow to manipulate the imported data to create/update the two entities and set the association and run this after the import.
Here's the sort of microflow that you need to create . Right-click to view it larger. Run this from a button in the datagrid of your imported data, then pass a list of rows in your microflow settings. The loop steps through each row and checks first whether the person already exists. If not it creates a new record. Then it does the same for the addresses. Then it sets the reference between the 2 records.
Hello Prathibha , Are u able to create many to many association from spreadsheet ...? If yes please let me know how did u do....Hello Prathibha , Are u able to create many to many association from spreadsheet ...? If yes please let me know how did u do....