- gtk_file_filter_add_pattern (filter, "*.sav");
- gtk_file_filter_add_pattern (filter, "*.SAV");
- gtk_file_filter_add_pattern (filter, "*.por");
- gtk_file_filter_add_pattern (filter, "*.POR");
+ gtk_file_filter_add_mime_type (filter, "application/x-spss-sav");
+ gtk_file_filter_add_mime_type (filter, "application/x-spss-por");
+ gtk_file_filter_add_pattern (filter, "*.zsav");