What should the permissions be for the following?

Next files have inappropriate permissions:
ray/modules/chat/xml/config.xml;
ray/modules/chat/xml/langs.xml;
ray/modules/chat/xml/main.xml;
ray/modules/chat/xml/skins.xml;
ray/modules/desktop/xml/config.xml;
ray/modules/desktop/xml/langs.xml;
ray/modules/desktop/xml/main.xml;
ray/modules/desktop/xml/skins.xml;
ray/modules/global/app/ffmpeg.exe;
ray/modules/global/inc/cron.inc.php;
ray/modules/global/inc/header.inc.php;
see more ray/modules/global/xml/config.xml;
ray/modules/global/xml/main.xml;
ray/modules/presence/xml/config.xml;
ray/modules/presence/xml/langs.xml;
ray/modules/presence/xml/main.xml;
ray/modules/presence/xml/skins.xml;
ray/modules/shoutbox/xml/config.xml;
ray/modules/shoutbox/xml/langs.xml;
ray/modules/shoutbox/xml/main.xml;
ray/modules/shoutbox/xml/skins.xml;
ray/modules/video/xml/config.xml;
ray/modules/video/xml/langs.xml;
ray/modules/video/xml/main.xml;
ray/modules/video/xml/skins.xml;


I have it set to 777 currently.