2. Go to Window > cuts setup. This will open a new window titled Cuts Setup, and should change the drop-down menu under the Spectrum display to Cut 0,1
3. Set the high and low energy cursors around the section that you want to cut out of the data fitting process. Press the Sigma button. This will populate the Cuts Setup window with information about your selection.4. Save the cuts setup to a .cuts file using the save button at the bottom of the Cuts Setup window. Its nice to put this in the setup folder of your project, and to label it with the energy range you are cutting out in the filename.
5. To apply the cuts file to your fitting procedure, go to the Advanced-General tab in the X-ray Spectrum Fit window and press Load to load your file.-- LMS - 17 Mar 2016