Add common prefix to all cells in Excel

Question

I have a column with some text in each cell.
I want to add some text, for example \"X\", at the start of all cells. For example:

A             B
-----  &         


        

Answer 1

Select the cell you want to be like this, go to cell properties (or CTRL 1) under Number tab in custom enter "X"@

Put a space between " and @ if needed