Pressing Alt + Enter inserts what is called a Line Feed character, which inserts a new line. There other ways to insert the Line Feed character in VB.
The first is by adding character number 10:
“Line 1” & Chr(10) & “Line 2”
The second is by adding the command vbLf:
“Line 1” & vbLf & “Line 2”
Example with new line: