Writing to external files!

I was wondering if unity can read and write files (text or other)? If it can how do I do it? is there documentation? and if I can how do I save to a specific location and load it back from there?

thanks

You'll be wanting System.IO. There are various other questions and answers along similar lines including:

http://answers.unity3d.com/questions/51119/creating-a-file-and-writing-into-it-p/51128#51128

Note that this will not work if you are building for the web player. (Thanks DaveA for pointing this out in the comments below)