xxxxxxxxxx
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.
xxxxxxxxxx
Open php.ini file
//Change the following settings bigger than the file size you are importing
//e.g for a file of 2GB
post_max_size = 2000M
upload_max_filesize = 2000M
memory_limit = 3000M
max_execution_time = 3000