there's group A and group B. group A can access the share \\server\folder1
The share permissions on folder1 is everyone has full control
the ntfs permissions give group A the folder, subfolder and files full access.
we want group b to have full access to 1 file (an excel spreadsheet) in folder 1
We gave group b full access to that file. But since they have no permissions to folder 1 itself, someone here said to give list folder / read data permissions.
but when a group b user tries to save, they get access denied. we don't want them to open or do anything with any other file in that folder.