How do I open saved files to work on the coding?

I finished an assignment in matlab and saved it to my flash drive. When I went to print the worksheet, I could see any of the code. When I went back to my original computer where I did the work, I opened the file to find there was no code. How do I get the code to appear so I can print?

[Walter Roberson]

You might have accidentally saved something on top of the code :(

For example if you did

save HW3.m

then it would have written your current variables on top of the file HW3.m . save does not save code.