I wish to preserve this file for later generations. I have no technical know how to do this, any help would be greatly appreciated. Thanks.
Look into the Factom project. I believe what they are doing will solve this problem.
Factom can *secure* the data, so you can validate and verify data in the future. It would be expensive to try and store 5 Meg into Factom. 1K = .1 cents, so about $100 dollars to put 5 Meg into Factom. Then you would need a app to break up your data into ~10K chunks and reconstruct them.