Question : excel remove chars

hello experts
I have received an excel file and I have some specials chars inside like squares.
I assume there are solme no printable chars or specials chars.
How can I remove them ?
Thanks

Answer : excel remove chars

You would just drag the formula down in column B.  

1.  Click the cell with the formula in it
2.  Hover over the bottom right corner of the cell until the mouse icon changes to a cross (+)
3.  When it's a cross, left click and drag the formula down for all the rows.