File to IDOC scenario facing the issue with the value like 5.342E-07

I am working on Exchange rate file to IDOC.

in that i need to get the data from file and pass it to IDOC.

Here i am facing issue for the values like in the file 5.342E-07

Please help me to resolve when this type of data comes in the file.

More over I need to use 1/X functionality also which is 1/5.342E-07 not acceptable.

Thanks