I am new(ish) to Python and I'm just trying to figure out how things work. When I use:

```
with open('C:\\Users\\KB\\Documents\\DataProcessing.txt', 'r') as f:

```

is f a new variable being created? Could I use any variable in its place? I've seen 'file' used as-well so I'm just wondering if this is an arbitrary name being assigned to a newly created variable? Could it be named anything or does it have to be f?