number format
 

I have a text file that was imported into excel. There
are no decimal points in the numbers but I would like to
have decimal points. However, when I try to format the
cell, it acts as if there are no cents and adds two zeros
to the number.

Text format: 5120
numercial fomatting in excel: 5,120.00
The number should be $51.20

Could you please offer a suggestion?