Number formatting

[Keith Gold]

How do I convert this number 8.989E+19 (which was extracted from a website) to a csv file to this 89440000000016448260. If I convert it to then the last 8 to 10 digits become zero's

[daffodil11]

Because Excel uses floating point precision, it will never store a numeric value beyond 15 digits.

You can technically copy the number into a cell after ' and it will store the value as a text string, but if you attempt any sort of calculation against it, it will instantly convert the remaining digits into zero.

You may wish to search for software designed to handle arbitrary point precision.