Just like PHP (ie php.ini), phpMyAdmin also has its own execution time limit. Why? I dont know.

You are most likely to see an error like the one below:

Fatal error: Maximum execution time of 60 seconds exceeded in C:\xampp\phpmyadmin\libraries\dbi\mysql.dbi.lib.php on line 140

To increase the phpMyAmin execution time, you need to edit the file

Add this line to xampp\phpmyadmin\config.inc.php

$cfg['ExecTimeLimit']=6000;

You might also want to change the settings below in the normal php.ini file if you still are getting timeout errors.

And Change xampp\php\php.ini to

post_max_size =750M 
upload_max_filesize =750M   
max_execution_time =5000
max_input_time =5000
memory_limit =1000M

And change xampp\mysql\bin\my.ini

max_allowed_packet =200M