I wonder if someone could help as this is driving me bonkers! I have a very large excel file, close on a million lines which has in one of the columns partner EDI addresses which are a mix of alphanumeric characters. When it's totally numeric, the number could be 21+ digits long and the CSV file they are in has the field as GENERAL and the number surrounded by a leading =" and followed by a trailing ". If I manually remove the =" and trailing " the field changes to TEXT and the whole number can be seen. e.g. 1234567891011121314, however if I use find/replace to remove the =" and trailing " the number is immediately displayed in scientific notation 1.2345E+12 (for example) and the trailing part of the number becomes 0's and therefore doesn't now accurately represent the partner address. Now I know there is a difference between how Excel stores the number versus how it displays the number, but how can I get Excel by way of cell type or formula to always display the full length number in TEXT format.