Hi,
Please put your website on staging server and test it there.
Post and Podcast (our custom post type) field should be same as structure and data then it will be imported.

Sir,
we havent had an incident like this but as per my experience if both post structure is same then it will be otherwise – it will not.

You can Try some 3rd party plug-in (on your own behalf) and always take a backup before trying this type work.

Thanks,