diff --git a/antarest/study/common/studystorage.py b/antarest/study/common/studystorage.py
index 682b01d753..c6357d9123 100644
--- a/antarest/study/common/studystorage.py
+++ b/antarest/study/common/studystorage.py
@@ -273,10 +273,13 @@ def unarchive_study_output(
         raise NotImplementedError()
 
     def unarchive(self, study: T) -> None:
+        """
+        Unarchived a study
+        Args:
+            study: StudyFactory
+        """
         raise NotImplementedError()
 
-    # def export_study_flat(self, **kwargs) -> None:
-    #     raise NotImplementedError()
     def export_study_flat(
         self,
         path_study: Path,
@@ -285,4 +288,13 @@ def export_study_flat(
         output_src_path: Optional[Path] = None,
         output_list_filter: Optional[List[str]] = None,
     ) -> None:
+        """
+        Export study to destination
+        Args:
+            path_study: source path.
+            dst_path: destination path.
+            outputs: list of outputs to keep.
+            output_src_path: list of source outputs path
+            output_list_filter:list of outputs to keep
+        """
         raise NotImplementedError()
diff --git a/antarest/study/service.py b/antarest/study/service.py
index 41200430cd..1df14f461d 100644
--- a/antarest/study/service.py
+++ b/antarest/study/service.py
@@ -2166,7 +2166,7 @@ def unarchive(self, uuid: str, params: RequestParameters) -> str:
 
         def unarchive_task(notifier: TaskUpdateNotifier) -> TaskResult:
             study_to_archive = self.get_study(uuid)
-            self.storage_service.raw_study_service.unarchive(study_to_archive)
+            self.storage_service.raw_study_service.unarchived(study_to_archive)
             study_to_archive.archived = False
 
             os.unlink(
diff --git a/antarest/study/storage/abstract_storage_service.py b/antarest/study/storage/abstract_storage_service.py
index a7d7c84168..34f919ef41 100644
--- a/antarest/study/storage/abstract_storage_service.py
+++ b/antarest/study/storage/abstract_storage_service.py
@@ -67,11 +67,9 @@ def export_study_flat(
     Args:
         path_study: Study source path
         dest: Destination path.
-        study_factory: StudyFactory,
         outputs: List of outputs to keep.
         output_list_filter: List of outputs to keep (None indicate all outputs).
-        output_src_path: Denormalize the study (replace matrix links by real matrices).
-
+        output_src_path: list of source outputs path.
     """
     start_time = time.time()
     output_src_path = output_src_path or path_study / "output"
diff --git a/antarest/study/storage/rawstudy/raw_study_service.py b/antarest/study/storage/rawstudy/raw_study_service.py
index 1263af3704..6c48c754b0 100644
--- a/antarest/study/storage/rawstudy/raw_study_service.py
+++ b/antarest/study/storage/rawstudy/raw_study_service.py
@@ -412,7 +412,7 @@ def archive(self, study: RawStudy) -> Path:
         self.cache.invalidate(study.id)
         return new_study_path
 
-    def unarchive(self, study: RawStudy) -> None:
+    def unarchived(self, study: RawStudy) -> None:
         with open(
             self.get_archive_path(study),
             "rb",
diff --git a/antarest/study/storage/variantstudy/variant_study_service.py b/antarest/study/storage/variantstudy/variant_study_service.py
index 1776f0af82..c82982f152 100644
--- a/antarest/study/storage/variantstudy/variant_study_service.py
+++ b/antarest/study/storage/variantstudy/variant_study_service.py
@@ -839,21 +839,6 @@ def _generate(
 
         if last_executed_command_index is None:
             if isinstance(parent_study, VariantStudy):
-                #     self._safe_generation(parent_study)
-                #     self.export_study_flat(
-                #         metadata=parent_study,
-                #         dst_path=dst_path,
-                #         outputs=False,
-                #         denormalize=False,
-                #     )
-                # else:
-                #     self.raw_study_service.export_study_flat(
-                #         metadata=parent_study,
-                #         dst_path=dst_path,
-                #         outputs=False,
-                #         denormalize=False,
-                #     )
-
                 self._safe_generation(parent_study)
                 path_study = Path(parent_study.path)
                 snapshot_path = path_study / SNAPSHOT_RELATIVE_PATH
@@ -867,7 +852,7 @@ def _generate(
             else:
                 path_study = Path(parent_study.path)
                 if parent_study.archived:
-                    self.raw_study_service.unarchive(parent_study)
+                    self.raw_study_service.unarchived(parent_study)
                 try:
                     self.raw_study_service.export_study_flat(
                         path_study=path_study,