Only the real component of the processed data is used by Sparky. The dimension of the data is ascertained by the number in the Bruker file name. So that name should not be changed. Also parameters for each spectrum axis are extracted from the proc, proc2s, proc3s files in the same directory, and from the acqus, acqu2s, acqu3s files in in the directory above. The path to the Bruker data file should not be a symbolic link since paths to the acqus and procs parameter files like symbolic-link/../procs will not be correct. For more information see the Sparky documentation manual/files.html.