[berkozaydin]

I want to make a UDF file to prepare some contours and pathlines. And the UDF file contains the file path. I mean, when I import the udf file in ANSYS Fluent, it will prepare all contours and pathlines in a file that is located on my desktop. How can I implement this stuff in a code basically?

Thanks!

[AlexanderZ]

first of all, what exactly you want is unclear
everything you can do in GUI can be made using TUI commands (commands in fluent console)
for post processing you need scheme commands + TUI
UDF is used to control the solution, read/write data