not experianced please give some advice how to have my site on wordpress so i can work with it
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Without any information on what type of site this is, what files you have or anything else to go on there won’t be much anyone in the community here can do for you. If you can share some more details we’d be happy to help.
To provide help more information is needed.
These files you purchased on eBay, are they a complete WordPress install and MySQL Export file you are looking to install on another server?
A WordPress default install will have a file structure as shown here in the WordPress GitHub Mirror… https://github.com/WordPress/WordPress
The MySQL Export which contains the website data would be another file that most likely ends with *.sql