The issue I built a database on xampp, but I did this when I was use a normal website (not on wordpress) and one of tables is for users' accounts.
The fields in users' table are username, password, emails and more, but not all have same privileges, only one or two can control anything and not all is active.
"So, How can I force wordpress on my local to use this table or should let wordpress system create its own tables and accounts for some issues?"
To be honest, my database is full and big and more than 50 tables and I can't cancel it.
Note: This is my first time I use wordpress, and I searched on google but didn't get what I want!, so if my question has some little problems just comment.