Is there a way that the people using my app can have their data all go back to my original sheet?
It should Import and Export on a real time basis
What data sources are you using? You referred to your “original sheet”, so I would assume Google Sheets or Excel.
If you are using sources such as Glide Tables, Google Sheets, Excel, Airtable, then the data synchronizes pretty much in real time (no need for imports or exports).