Inserting a decimal into numbers

Hi There,
At one time I knew this answer, but it's been so long since I've had to do this I don't remember. I have a column that containts 4 digit numbers in each cell, these 4 digits are not seperated by commas or decimals. I want to insert a decimal in the same location in all the number, how do I do that?


Insert a decimal.xls

Shoot. Yes, sorry that was too simple. I was over complicating it. I kept thinking I had to do a 'Left' formula