How do you pull specific strings from a text file?

[cluelessnoob]

I have a text file with various pieces of information that I need to define and send through some other functions. Below are three sections that I would need to separate the dates, product IDs, products etc. Really lost on what to do after making sure the file opens in my program.

3 5/15/2015
161432 Apple 5 6.50
543289 Orange 10 2.25
876234 Banana  2 10.75
2 10/3/2015
135876 Soap 12 22.50
543287 Shampoo 4 19.25
2 10/25/2014
134276 Soda 8 7.35
125790 Chips 12 15.76