@ Jerome
re: Disable Real MIME Check plug-in
This is not required with the latest version of the CSV import extension. It includes secure method to work with the new security checks on files uploads in WP 4.7.1.
If you are still receiving the incorrect file type or file was rejected for security reason, did you try the solution in this FAQ?
re: I spent another three hours trying to resolve, but to no avail.
Please feel free to ask before spending so much time. I try to answer quickly … if I’m online and weekends might not get to answer until Monday.
re: any suggestions?
I need more details…
When you click upload, do you get the mapping step? If yes, the file uploaded just fine.
When you click the import, what happens?
Did you follow the CSV File Setup Requirements and the Tips or refer to the FAQs? Specifically the Why is nothing being imported? FAQ?
Can you please attached a copy of the file you are importing? Please renamed it from .csv to .txt first so the forum will accept the attachment.
