How do you mean it is converting numbers to text? Microsoft Excel automatically converts text to numbers as necessary. Or does "2" somehow become "two"?
In a blank cell, type the number 1 and copy that cell. Now, highlight the range of numbers that you imported and go to Edit/Paste Special/Multiply
(Multiply is a check box in the Paste Special box).
I believe he means 2 becomes "2".
I think you could also try
=Val(YourCell)
to return a number that's been seen by Excel as Text to be seen as numeric again.
I presume you are referring to the VALUE worksheet
function, =VALUE(YourCell).