Page already exists on the web via GoLive!

I already have a web page built with GoLive on the web, but since Adobe is no longer supporting that program I was looking around for something new. WordPress seems to be everywhere, but I was just wanting to play around with it and see how things work. I can’t do that until I upload it, but will it over write the existing pages I already have on the web? Will I be able to import the pages already existing both on the web and in my GoLive file to WordPress?

Thanks in advance for the assistance.
Matthew