I'm trying to migrate my old WordPress.com blog into my new self-hosted site. I have successfully exported the old blog and saved the file to my computer but when I browse to the file using the WP software and then click on 'Upload and import file' here on this side, I keep getting the following error message:
I know the exported file definitely isn't empty because I opened it and it's got all the old blog content in there. So what else is wrong? What is the 'php.ini' and how to I enable uploads there? Or how do I change the 'post_max_size'?