Hello, S. Batsukh.
To display actual content of the file you have to take the next steps:
1) Close any opened windows containing help for IndorIntensity.
2) Find file "IndorIntensity.chm"
3) Open its properties dialogue. You can do that by right-clicking on it and choosing "Properties" from the popped context menu.
4) Press "Unlock" button, situated near the bottom of the dialogue. It is marked with a red ellipse on the attached screenshot.
This should fix your problem and make the help file display correctly.
Please feel free to write back if this method doesn't work.