IEEE 754 deals the way numbers are stored in memory on a computer and the
math the manipulates these numbers. When you import and export numbers you
are using digits (0-9) that represent the numbers. If you havve 8 bit memory
(or byte) in the computer the number will be stored as ones and zeroes
00010100 which equals 20. You don't import the ones and zeroes you import
the digits that represent the number which is 20. This applies to IEEE 754.
IEEE 754 numbers are scientific notation numbers such as 1.50E+00. You
import and export the scientific notation that represents thes number.
You don't need to convert these numbers to general numbers just change the
format in which the number are displayed in excel.