problem with XML-RPC.php

HI
I’m using wordpress 9.2 and It’s the first time that I want to use blogdesk. I’m using blogdesk 2.8 and I have a problem with XML-RPC.php.

I wanted to add a new blog and In the third step I have to enter “https://example.com/xmlrpc.php” but I don’t have this page . I mean when I wanted to enter this page , It showed me 404 error and It wasn’t .

I want to know what should I do ? What should I enter in this box ?

Thanks