Excel users

I've been wondering this for a long time as all of my spreadsheet work to date has been painstakingly written cell by cell even with the information I'm attempting to place in front of me because I can't copy and paste multiple lines of text into more than one cell. Google has failed me; for some reason it's full of questions asking how to do exactly what I don't want which is somewhat baffling because I can't get away from it.

Basically I want to be able to take something like this

Line 1
Line 2
Line 3

and to copy it all at one time and have it go into

[Cell 1]
[Cell 2]
[Cell 3]

instead of just going

[Line 1
Line 2
Line 3]
[Cell 2]
[Cell 3]

I hope that's clear.