Can Not Export

Can Not Export

Hi,
 
I have used this product for about two years now.  I had setup a sheet to be shared with multiple users, using the ability to grant permissions per sheet so that users can only update their individual sheet.  I see that this feature is no longer supported for new sheets, but my current sheet has preserved the original permissions.  However these users do not have the ability to export/download the sheets to their local PCs.
 
If i change everyone's permission to Read/Write, they can export the sheet, but i want to be able to restrict activity to macros on some sheets.
 
What options do i have?
 
Thanks
Joe