Files on a computer question

LadyOfMystery

Heart of Gold
Mar 25, 2007
38,436
8,272
36
North Carolina
✟279,393.00
Country
United States
Faith
Baptist
Marital Status
Single
Politics
US-Republican
So I thought I'd just give this a shot and see if any of y'all could help me out. I know some stuff about computers, but when my mom asked me this I got stumped. lol

Is there a way to have your documents saved with a password? So for example not just anyone could open one of them and be nosey?

I know that you can have your actual computer password protected. But was just wondering if you could go one step further with your documents.