Open chm file on ubuntu

sudo apt-get install xchm

Upload Big Files into Phpmyadmin

sudo gedit /etc/php5/apache2/php.ini

upload_max_fileseze = 100M
memory_limit = 100M
post_max_size = 100M

sudo gedit /etc/phpmyadmin/config.inc.php

$cfg['ExecTimeLimit'] = 300;
to
$cfg['ExecTimeLimit'] = 0;