diff --git a/src/ansys/dpf/core/data_sources.py b/src/ansys/dpf/core/data_sources.py
index 14df016744..c2cc0539e5 100644
--- a/src/ansys/dpf/core/data_sources.py
+++ b/src/ansys/dpf/core/data_sources.py
@@ -116,15 +116,25 @@ def set_result_file_path(self, filepath, key=""):
         ['/tmp/file.rst']
 
         """
-        # Handle the case of files without extension, such as the LS-DYNA d3plot file
-        if os.path.splitext(filepath)[1] == "":
-            if "d3plot" in os.path.basename(filepath):
-                key = "d3plot"
+        # Handle no key given and no file extension
+        if key == "" and os.path.splitext(filepath)[1] == "":
+            key = self.guess_result_key(str(filepath))
         if key == "":
             self._api.data_sources_set_result_file_path_utf8(self, str(filepath))
         else:
             self._api.data_sources_set_result_file_path_with_key_utf8(self, str(filepath), key)
 
+    @staticmethod
+    def guess_result_key(filepath: str) -> str:
+        """Guess result key for files without a file extension."""
+        result_keys = ["d3plot", "binout"]
+        base_name = os.path.basename(filepath)
+        # Handle files without extension
+        for result_key in result_keys:
+            if result_key in base_name:
+                return result_key
+        return ""
+
     def set_domain_result_file_path(self, path, domain_id):
         """Add a result file path by domain.
 
diff --git a/tests/test_datasources.py b/tests/test_datasources.py
index 37c1ac64fc..ce28e25313 100644
--- a/tests/test_datasources.py
+++ b/tests/test_datasources.py
@@ -42,9 +42,13 @@ def test_addfilepathspecifiedresult_data_sources(allkindofcomplexity, server_typ
     data_sources.add_file_path_for_specified_result(allkindofcomplexity, "d3plot")
 
 
-def test_setresultpath_data_sources_no_extension(d3plot_beam, server_type):
+def test_setresultpath_data_sources_no_extension(d3plot_beam, binout_glstat, server_type):
     data_sources = dpf.core.DataSources(server=server_type)
     data_sources.set_result_file_path(d3plot_beam)
+    assert data_sources.result_key == "d3plot"
+    data_sources = dpf.core.DataSources(server=server_type)
+    data_sources.set_result_file_path(binout_glstat)
+    assert data_sources.result_key == "binout"
 
 
 def test_addupstream_data_sources(allkindofcomplexity, server_type):