diff --git a/README.md b/README.md
index 4c65329..c1931cd 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,7 @@
   - [Sequential PCD](#sequential-pcd)
   - [DICOM](#dicom)
   - [Common](#common)
+- [Appendix](#appendix)
 - [Annotation](#annotation)
 - [Project](#project)
 - [Dataset](#dataset)
@@ -2174,6 +2175,35 @@ Example of a single history object
 }
 ```
 
+
+## Appendix
+
+Processing of various types of appendix information is supported.
+
+### Import Camera Calibration
+
+Import camera calibration and image appendix information for tasks in pcd and sequential pcd projects.
+
+
+```python
+client.import_appendix_file(project="YOUR_PROJECT_SLUG", file_path="ZIP_FILE_PATH")
+```
+
+The folder structure inside the ZIP file is as follows
+
+```
+.
+└── task_name
+    ├── content_name_1.pcd
+    │   ├── 000001.png
+    │   └── 000001.yaml
+    └── content_name_2.pcd
+        ├── 000002.png
+        ├── 000002.yaml
+        ├── 000003.png
+        └── 000003.yaml
+```
+
 ## Annotation
 
 ### Create Annotation
diff --git a/fastlabel/__init__.py b/fastlabel/__init__.py
index 1d96d57..a0d392d 100644
--- a/fastlabel/__init__.py
+++ b/fastlabel/__init__.py
@@ -1974,6 +1974,32 @@ def create_sequential_pcd_task(
 
         return self.api.post_request(endpoint, payload=payload)
 
+    def import_appendix_file(
+        self,
+        project: str,
+        file_path: str,
+    ) -> list:
+        """
+        Import calibration file zip.
+            project is slug of your project (Required).
+            file_path is a path to data. Supported extensions are zip (Required).
+        """
+
+        if not utils.is_appendix_supported_ext(file_path):
+            raise FastLabelInvalidException("Supported extensions are zip.", 422)
+
+        endpoint = "contents/imports/appendix/batch"
+        payload = {"project": project}
+        signed_url = self.__get_signed_path(
+            project=project,
+            file_name=os.path.basename(file_path),
+            file_type="application/zip",
+        )
+        self.api.upload_zipfile(url=signed_url["url"], file_path=file_path)
+        payload["fileKey"] = signed_url["name"]
+
+        return self.api.post_request(endpoint, payload=payload)
+
     # Task Update
 
     def update_task(
diff --git a/fastlabel/utils/__init__.py b/fastlabel/utils/__init__.py
index 43f4763..3b90d73 100644
--- a/fastlabel/utils/__init__.py
+++ b/fastlabel/utils/__init__.py
@@ -42,6 +42,10 @@ def is_dicom_supported_ext(file_path: str) -> bool:
     return file_path.lower().endswith((".zip"))
 
 
+def is_appendix_supported_ext(file_path: str) -> bool:
+    return file_path.lower().endswith((".zip"))
+
+
 def is_pcd_supported_ext(file_path: str) -> bool:
     # .ply is not yet supported. To support it, modification of the API
     # needs to be considered as well.