How to bulk edit the processor from web/html to stock/price.

[Goeny]

I have an auto import based on the sitemap from a webpage.
This imports 1000s of URL's but they are all added with the default webpage text/html processor.
I want these to function as price/stock processor but cannot find a way to bulk edit them.
It's simply too much to edit manually. (6300+ URL's)

Any idea how i can get this sorted?

Thanks in advance.