
What you need, is to customize your cell format.
Right mouse click on the cell > click on Format Cells...
Format Cells window opens. Here from under Category click on Custom.
Under Type: enter '@ > click OK.

Now type anything using the single quotes, it will display your entries properly.

In case, if you need a whole colum full of entries within single quotes, then right click on the column heading, go to Format cells... and do customise as above.
Have fun
