Reply To: Saving a change in fluent case file (read case and data)

[Rob]

That looks like a WB file structure. WB retains a workflow so depending on whether you opened Setup or Solve it may behave slightly differently. Opening the wrong one can also result in your losing your results. 

In the session, go File>Write case & data, or File>Export Case & Data. Then open the files in Fluent using the Start Menu to launch it.