Questions on EXT.exe output and flow variables (FLOF, FLIQ) in TOUGHREACT V4.13-OMP (EOS3)

Dear TOUGH users,

I am running a simulation using TOUGHREACT V4.13-OMP with EOS3, considering an unsaturated zone.

I have two questions regarding Tecplot visualization.

First, when I use EXT.exe to process the simulation output file (flow.out) and generate Tecplot input files (e.g., flow.out1), I sometimes obtain an empty file, or no output file is generated at all. What could be the cause of this issue? I have attached the corresponding flow.inp file where this problem occurs.

Second, could you please explain how the variables FLOFx–z and FLIQx–z in the flow.out file (as extracted by EXT.exe) are calculated?

Thank you very much for your help.

Best regards,
Jiei