Hi there,
The easiest way to output a list ot a file, is with the function "OutputList" from the toolbox. Then when you want to read the list from file, you can retrieve one or all items from the file (say with fscanf or ArrayToFile) and insert them back into a pre-existing list.
I am attaching a simple C file that shows how to send your list to a text file.
Happy Thanksgiving!
Azucena