The first thing to do is to drag and drop your color table in Coraye or to perform a "File / Open" to select your color table.
Coraye is compatible with .cxf, .aco, .acb, .ase, .csv, etc...
By right clicking, you will have access to export functionalities. Select "Export EFI".
Give a name before saving your file (for example: My Color Table.cxf)
Open the EFI Client or the Fiery Command Workstation software.
Open the Color Tool option.
Select in the upper tab the File > Import action.
Browse to your .cxf file, select it and open it.
Colors of your Color Table will appear in the left column.
Give a name to your EFI Color Table.
Assign your Color Table to yours workflows, and it's ready to use.