I could not find this important sentence in the official documentation. Nowhere. Why not you revise the doc?
I looked at the Reports folder of one of my API test projects. I used v8.3.0 of Free plan Katalon Studio, not Enterprise version.
Using my favorite editor, Yes, I found the *.har files in the Reports directory.
However I could not see the har files in the Katalon Studio GUI. When I clicked the directory, a modal dialog appeard “Uh oh … This is an exclusive feature of Studio Enterprise”, “No worries. Just upgrade the Enterprise feature too unlock all powerful capablilities”.
Now I understand the the HAR file is designed for the Katalon Studio Enterprise users only. Free plan users are not supposed to see it. The official documentation should clearly explain this point as well.
Well, I don’t really mind this treatment. In fact, I would never open HAR files in Katalon Studio which provides no support for viewing/editing a large JSON text. I would certainly open HAR files in Visual Studio Code with the HAR Viewer plugin as I mentioned previously.