Import data from file larger than 15 MB

you should try splitting the file with this tool. I used it several years ago and hopefully it still works with the current export file format. After splitting you import each of the generated files.

Export and import all Plugin options

The Codex suggests that you use wp_load_alloptions instead. I would suggest that you therefore use wp_load_alloptions. That technically answers the question, I think. wp_load_alloptions will pull all of the options out of the options table and your question does not explain why you need to do that. Are you actually needing to pull only your … Read more

Moving 2 wordpress sites to one

I’d use the export tool but split the files using a tool like http://rangerpretzel.com/content/view/20/1/ You may need to check everything individually to make sure there’s no conflicts like same name categories, tags and usernames. Check posts, pages, comments, custom fields, terms, navigation menus and custom posts for potential conflicts. You may want to set these … Read more