GroupMind Query: Excel

Okay, so I’m trying to do something in an Excel spreadsheet that seems like it should be really easy, but I can’t figure out how to do it.  

I’m using the spreadsheet in question to keep track of my workout routine (weight, sets, reps, etc.).  In column A of the spreadsheet, I have the names of the exercises.  In the other columns, I have the weight, sets, and reps data.  What I want to do is lock column A, so that when I fill up my columns with data and I have to scroll to the right to see blank columns, column A will still stay on the screen (instead of being scrolled away with the data).  So I guess you could call it setting a false margin or something like that.  I can’t figure out how to do it, and I can’t figure out how to ask Excel how to do it.  Can anyone help?