Hello
I have an Excel 2013 sheet that contains columns of long numbers (typically 21054011000001100).
I need to export this file in csv format for another user to import into Oracle; however, whenever I export as a csv file the number changes to 2.1054E+16 and the other user can't use it.
Is there an easy way to do this as it's driving us both mad!!!!

Thanks in anticipation.