Limiting the export

Hi community,

I am new at CommCare and i have question where i couldn't find the answer. My organization using the pro account or more. So my question is, i would like to give data export permission to my partner organization which they collect data in our account, but i would like to limit them to download only the data collected by their staff. But according to our IM team, if we gave them export permission they will access to all exports we have. What could be done about it?