Add a few file reading functions
Add a few file reading functions

koushikcgit/xenopsd,djs55/xenopsd-previous,djs55/xenopsd-previous,cheng--zhang/xenopsd,johnelse/xenopsd,cheng--zhang/xenopsd,simonjbeaumont/xenopsd,koushikcgit/xenopsd,euanh/xenopsd,simonjbeaumont/xenopsd,djs55/xenopsd,simonjbeaumont/xenopsd,johnelse/xenopsd,cheng--zhang/xenopsd,johnelse/xenopsd,thomassa/xenopsd,euanh/xenopsd,djs55/xenopsd,thomassa/xenopsd,koushikcgit/xenopsd,djs55/xenopsd,djs55/xenopsd-previous,euanh/xenopsd,thomassa/xenopsd