I'm trying to upload a file with an extension of .ies and am getting the message: "can't upload the file because of security reasons." I've seen the various questions similar to this but because my file extension is unique to my market, I haven't seen a questions that's exactly like mine. I'm a marketing manager and don't know how to write code! Unfortunately we have a skeleton staff (i.e. no IT dept) so I need to learn how to do this. Is there anything I can do?
If you have an answer, please dummy it down for me (not techie at all). Thank you.