diff --git a/packages/markitdown/src/markitdown/_markitdown.py b/packages/markitdown/src/markitdown/_markitdown.py
index 9072951..ee588cf 100644
--- a/packages/markitdown/src/markitdown/_markitdown.py
+++ b/packages/markitdown/src/markitdown/_markitdown.py
@@ -230,7 +230,7 @@ class MarkItDown:
         ext = kwargs.get("file_extension")
         extensions = [ext] if ext is not None else []
 
-        # TODO: Curently, there are some ongoing issues with puremagic's magic_stream function (incorrect guesses, unsupported file types, etc.)
+        # TODO: Curently, there are some ongoing issues with passing direct file objects to puremagic (incorrect guesses, unsupported file type errors, etc.)
         # Only use puremagic as a last resort if no extensions were provided
         if extensions == []:
             for g in self._guess_ext_magic(source=file_object):
diff --git a/packages/markitdown/tests/test_markitdown.py b/packages/markitdown/tests/test_markitdown.py
index adb9495..d04623b 100644
--- a/packages/markitdown/tests/test_markitdown.py
+++ b/packages/markitdown/tests/test_markitdown.py
@@ -335,11 +335,23 @@ def test_markitdown_local_objects() -> None:
         text_content = result.text_content.replace("\\", "")
         validate_strings(result, SERP_TEST_STRINGS, SERP_TEST_EXCLUDES)
 
+    # Test RSS processing
+    with open(os.path.join(TEST_FILES_DIR, "test_rss.xml"), "rb") as f:
+        result = markitdown.convert(f, file_extension=".xml")
+        text_content = result.text_content.replace("\\", "")
+        for test_string in RSS_TEST_STRINGS:
+            assert test_string in text_content
+
     # Test MSG (Outlook email) processing
     with open(os.path.join(TEST_FILES_DIR, "test_outlook_msg.msg"), "rb") as f:
         result = markitdown.convert(f, file_extension=".msg")
         validate_strings(result, MSG_TEST_STRINGS)
 
+    # Test JSON processing
+    with open(os.path.join(TEST_FILES_DIR, "test.json"), "rb") as f:
+        result = markitdown.convert(f, file_extension=".json")
+        validate_strings(result, JSON_TEST_STRINGS)
+
 
 @pytest.mark.skipif(
     skip_exiftool,