Turn off "Headers" then in row 1 col's A, make it a lable (any content you want), do this for as many columns as you need. You now have custom column headers. If you want to use this for all your default workbooks save it as a project.
Build a macro to hide and un-hide row 1, with a hot key, like: Ctrl+h. Now you can turn On and Off your custom header, by hitting: Ctrl+h.
Note: You can format the font and cells of that header row, with more options than you can with the real header's. Just remember, Excel will only reference your row-columns as R1C1 or A1 styles in formulas and code. JSW