object persistance with plist file, "writeToFile" doubt

Ok guys before I begin coding I want to make sure it's even possible to do it. Currently I have a NSMutableArray made up of various NSDictionarys that are made up of NSArrays (which are bidimensional so this in turn have NSArrays) that have two strings.

The question is, can I use the writeToFile function with the NSMutableArray and get a plist file? I know this function doesn't work with custom objects but I want to know if it works with this conglomerate use of permitted objects

thanks in advance, I hope you understand what I want

 

thanks, it did work