If you really have 7.20117 E12 in a cell in Excel, then it must be text. So apart from text manipulation you can't do this.
Even text manipulation followed by conversion to number would not get you any further than 7.2E12, because of Excel's maximum
precision of 15 decimal digits.
To be fair, it's not an Excel limitation, it's a limitation of the IEEE floating point standard.

--
Kind regards,

Niek Otten
Microsoft MVP - Excel


"Spring" wrote in message ...
| How do I truncate a number in scientific notation without rounding the last
| number?
|
| example:
| D22: 7.20117 E12 and I want 7.2011(0) E12
|
| I have tried =TRUNC(D22,4) with no success. I am fairly new at excel so
| very detailed responses are welcome. Thank you!