How can do 8-to-16 bit modulation in Labview

Dear All,

I would like to make 8-to-16 bit modulation (as like DVD do known as EFMPLus encoding) using Labview. 

What I want to do is: Firstly I can convert any image file into decimal format/binary file. Than decimal / binary format file save to the spreadsheet file. I want to apply 8-to-16 bit modulation techniques on the spreadsheet file.

Please advice me if there any way to make 8-to-16 bit modulation in Labview.

Many Thanks, Azim