diff --git a/acacore/models/file.py b/acacore/models/file.py
index d7817ee..d120ea3 100644
--- a/acacore/models/file.py
+++ b/acacore/models/file.py
@@ -2,6 +2,7 @@
 # Imports
 # -----------------------------------------------------------------------------
 import re
+from enum import Enum
 from pathlib import Path
 from typing import Optional
 from typing import Tuple
@@ -17,11 +18,16 @@
 from .base import ACABase
 from .identification import Identification
 
+
+class Action(Enum):
+    CONVERT = 'Convertool: To convert.'
+    REPLACE = 'Convertool: Replace with template. File is not preservable.'
+    MANUAL = 'Manual: File should be converted manually. [info about the manual conversion from reference_files].'
+    RENAME = 'Renamer: File has extension mismatch. Should be renamed'
+
 # -----------------------------------------------------------------------------
 # Model
 # -----------------------------------------------------------------------------
-
-
 class File(ACABase):
     """File data model."""
 
@@ -34,7 +40,7 @@ class File(ACABase):
     file_size_in_bytes: int
     signature: Optional[str]
     warning: Optional[str] = None
-    action: Optional[str] = None
+    action: Optional[Action] = None
 
     def identify(self, sf: Siegfried) -> SiegfriedFile:
         """Identify the file using `siegfried`.
diff --git a/acacore/tests/file_action_enum_tests.py b/acacore/tests/file_action_enum_tests.py
new file mode 100644
index 0000000..3aa330f
--- /dev/null
+++ b/acacore/tests/file_action_enum_tests.py
@@ -0,0 +1,35 @@
+import unittest
+from uuid import uuid4
+from acacore.models.file import Action, File
+
+
+class TestFileActionEnum(unittest.TestCase):
+    def setUp(self):
+        self.file = File(id=1, uuid=uuid4(), checksum='abc123', puid='fmt/18', relative_path='test.txt', is_binary=False, file_size_in_bytes=1024, signature='test')
+
+    def test_action_enum_values(self):
+        self.assertEqual(Action.CONVERT.value, 'Convertool: To convert.')
+        self.assertEqual(Action.REPLACE.value, 'Convertool: Replace with template. File is not preservable.')
+        self.assertEqual(Action.MANUAL.value, 'Manual: File should be converted manually. [info about the manual conversion from reference_files].')
+        self.assertEqual(Action.RENAME.value, 'Renamer: File has extension mismatch. Should be renamed')
+
+    def test_file_action(self):
+        self.file.action = Action.CONVERT
+        self.assertEqual(self.file.action, Action.CONVERT)
+        self.assertEqual(self.file.action.value, 'Convertool: To convert.')
+
+        self.file.action = Action.REPLACE
+        self.assertEqual(self.file.action, Action.REPLACE)
+        self.assertEqual(self.file.action.value, 'Convertool: Replace with template. File is not preservable.')
+
+        self.file.action = Action.MANUAL
+        self.assertEqual(self.file.action, Action.MANUAL)
+        self.assertEqual(self.file.action.value, 'Manual: File should be converted manually. [info about the manual conversion from reference_files].')
+
+        self.file.action = Action.RENAME
+        self.assertEqual(self.file.action, Action.RENAME)
+        self.assertEqual(self.file.action.value, 'Renamer: File has extension mismatch. Should be renamed')
+
+
+if __name__ == '__main__':
+    unittest.main()
\ No newline at end of file