thanks Dr Amine. Please i have 2 questions in the same concept.
1-I'm using Fluent directly not from Workbench. I autosaved the .cas and .dat files to do then the post processing with CFD post . sHOULD I define temperature contours in Fluent Results graphics as in the image1 to then find them in the post processing or create export as in the image 2.

2- in my transient simulation, I would like to extract as final result the temperature and liquid fraction contours in function of time for example each hour so does just the fact of autosaving the .dat files by retaining only the 2 previous files is enough to find these results in CFD POST or i should autosave .dat files each hour without retaining any file and go and open each one in CFD post . thanks