Is it possible to separate items in an Excel cell into separate lines? Other than using the space bar to make it appear as though there are separate lines?

For example (I created this in Word because I do not know how to do it in Excel, if it is possible):

Abcdefg
Bcdedfgh
Cdefghij
Defghijk
123412345
22344
721341234
8234243
92424
Asdfasdf
312525
42341234
104223
1124234
Basdfasdf
51524
6234234
Easdf
Fasdf


Thanks,
Mary