[RESOLVED] How to read from a single text file into multiple text boxes?

So, I have this text file.

Line1
Line2
Line3

I want to import them into TextBox1, TextBox2 and TextBox3 as Line1, Line2 and Line3 respectively. How do I do this? Is this possible as such, or should I try with delimiter like "," or something? Where do I start? Thanks.