You have literally not answered a single question from my previous post. The very first sentence is really a simple question which you have not answered.
All I know so far is that exporting databases in single file per table is “not working”. What you would expect to happen, and what actually happens, is still unclear to me.
What’s the exact error message? What do you see? Does it literally say “The file export.php cannot be found” as error message?
I’m getting tired of this. Please read all posts above again, and carefully check them for anything that’s a question or a request for other information. Until you can provide a detailed problem description, or at least appear to be doing a good attempt to answer the questions asked, I cannot help you. And I’m not going to harass you for the information one question at a time, especially when you don’t appear to even answer simple, direct questions.