Use these instructions to install LUTs from these LUT packs or any third-party LUT.
LUTs for Color Infrared Video and Photography
Faux Infrared LUTs and Profiles
Install LUT File
- Open DxO PhotoLab.
 - Select an image and select the Customize tab.
 - In the right column, select the Color tab.
 - Enable the LUT Grading module.
 - In the Type dropdown, select 
Custom. - In the Rendering dropdown, select 
Import (..cube).... This is locationed aboveNoneand you may need to scroll up to see it. - Select a .cube file to import and select Open.
 
Note DxO PhotoLab is only able to import one LUT at a time. There is a feature request to add multiple LUTs at one time.