## Convert column number to letter in Excel

To convert a column number to an Excel column letter (e.g. A, B, C, etc.) you can use a formula based on the ADDRESS and SUBSTITUTE functions. See example below: Formula =SUBSTITUTE(ADDRESS(1,col_number,4),”1″,””) Explanation In the example shown, the formula in C5 is: =SUBSTITUTE(ADDRESS(1,B5,4),”1″,””) The first step is to construct an address that contains the column …