keep acumulating values when changing excel Source

Hello All,

I am new to SSIS. As the title says, how can i keep the values acumulating everytime the excel source changes. For example an excel file comes everyday at 01:00 am every night in the outlook which i extract to a certain folder (using power automate) and then it deletes the file. This file have data from the day before and not the acumulating data since the beginning of the month. I want the "aggregate" container to keep counting (acumulating) the values that come everyday, the thing is that the file source changes everyday. Can anyone pls tell me how can i do this?

Best Regards,

David