The File/Import/Data... ribbon tab item is used to read in a Fluent data file (which has a .dat.h5 extension). This ribbon tab item will not be available until you read in a case or mesh file. See the separate Fluent User’s Guide for details.

The File/Import/Data... ribbon tab item opens the Select File dialog box which allows you to select the appropriate file to be read. For more information see Importing Fluent Files in Workbench.