Oh dear, no… I downloaded and installed XAMPP: not only was I unable to use it as you suggest/I ought, worse, I don’t understand what it is and how it is that it works in the browser.
I feel that I’ve bitten off more than I can chew. I can see that Word Press is an impressive instrument in databasic terms, so I will have to think carefully about my content/design prioritising before I continue.
Thanks for your help nonetheless.