How to write wav sound file from a list of samples?

I've got a source code on the inteet which do extract the sample values from a WAV file to a text file, like this: 1.17667 1.23074 3.07474 -0.00396729 -0.00393677 -0.00558472 -0.0159912 -0.0299072 -0.128143 -0.0204773 -0.206482 -0.252014 -0.0100098 -0.0585938 -0.317963 -0.253143 -0.302917 -0.0115967... .. How can I use it the write back, and create a wav file ?

here is the code for extracting the samples value :

http://pastebin.com/K375dbdj

Thank you !