Hi nekiwa07,
You need to setup passwords for mysql database before proceed forward.
once installed XAMPP then go to
https://localhost/security/
then click on the link given below
=> https://localhost/security/xamppsecurity.php <=
the you got the option to set password for database user “root”.
then go to
https://localhost/phpmyadmin/
login here using username: root and password you entered above.
create a database.
then extract and copy files to a directory and just browse
https://localhost/directory/
enter the details and install it.
it is better option to install.
for more details installation and setup of XAMPP you can see
here :