PhpMyAdmin Änderung der Datenbankimportgröße
Just change your php.ini(xampp/php/php.ini) file, it worked for me!
max_execution_time = 5000
max_input_time = 5000
memory_limit = 1000M
post_max_size = 750M
upload_max_filesize = 750M
And, don't forget to restart Apache Module from XAMPP Control Panel.
Mr. Samy