FYI - I have found an issue in the way the Netapp VMWare Vcenter 6.0 (1.1) is changing the csv content to ascii. The operation that you are currently performing is throwing a blank line at the end of each file. If there is no content to be acquired for a specific table entry (IE no nas shares) then there is a blank line. The data import process doesn't like this and throws a invalid row id error in WFA.
Attached is my rendition that fixes this. It is clunky, but gets the job done. I just changed things after line 495.