Hosts Editor help developers to add, remove or comment out entries in the hosts file (/system/etc/hosts) easily. And the hosts file allows the user to override an IP address of a specific url, and test applications on a specific server via its IP.
The developer is not responsible for any problem caused by editing the host file.
For free file manager from tomitools, please visit: https://play.google.com/store/apps/details?id=com.tomitools.filemanager