Upload a website on WAMP and modify it

There are two components to a web site: files and data.

Files

WP tends to use simplistic directory structure with all of the files in web root. Getting files in place is a matter of unpacking them to a new location.

Data

Data is a little more tricky. Typically it would be a dump of MySQL database, but might also be a WP export file. Overall you need to get it into database one way or another (SQL import, WP import, possibly third party tool that automates restore from its backup).

Once you are done you would need to follow the procedure to change site URL for a new location.

Without seeing what kind of export you actually have this is about as specific as it gets.