OK, you're writing a case file as fullcase.dat.gz and the data file as output_results.data Please open in Fluent to sort out the names, but also confirm they're .cas.gz and .dat.gz and not .cas.h5 & .dat.h5 CFD Post will look for names and wildcards, it's not necessarily going to pick up the link between case and data otherwise (the wildcard might confuse the case links).