If you have a data file that you would like to modify, you can read it into Ansys Polydata by following the procedure below:
Read the mesh file, as described in Reading Files Directly.
Select the Read an old data file menu item in the top-level Ansys Polydata menu.
Read an old data file
Specify the name of the data file to be read.
You can then continue the problem definition in Ansys Polydata as usual.