Wrap outside php script into a page

There is a php script I’m downloading and running off a directory within my site, but I want it to exist as a page (or series of pages, if need be, but i’d rather not) in my wordpress. Basically I want to wrap a dynamic php script and all its content within a single wordpress page. Is this something that can be done easily with/without the Exec-PHP plugin? My first inclination is that I should use that. I’m no expert so any help is appreciated.