diff --git a/scratchattach/other/other_apis.py b/scratchattach/other/other_apis.py
index a3790364..443e440c 100644
--- a/scratchattach/other/other_apis.py
+++ b/scratchattach/other/other_apis.py
@@ -2,6 +2,7 @@
 
 from ..utils import commons
 from ..utils.requests import Requests as requests
+import json
 
 # --- Front page ---
 
@@ -99,4 +100,4 @@ def aprilfools_get_counter() -> int:
     return requests.get("https://api.scratch.mit.edu/surprise")["surprise"]
 
 def aprilfools_increment_counter() -> int:
-    return requests.post("https://api.scratch.mit.edu/surprise")["surprise"]
\ No newline at end of file
+    return requests.post("https://api.scratch.mit.edu/surprise")["surprise"]
diff --git a/scratchattach/site/project.py b/scratchattach/site/project.py
index 6c318886..c75b505b 100644
--- a/scratchattach/site/project.py
+++ b/scratchattach/site/project.py
@@ -250,8 +250,8 @@ def download(self, *, filename=None, dir=""):
                 f"https://projects.scratch.mit.edu/{self.id}?token={self.project_token}",
                 timeout=10,
             )
-            filename = filename.replace(".sb3", "")
-            open(f"{dir}{filename}.sb3", "wb").write(response.content)
+            filename = filename.replace(".json", "")
+            open(f"{dir}{filename}.json", "wb").write(response.content)
         except Exception:
             raise (
                 exceptions.FetchError(
diff --git a/scratchattach/site/session.py b/scratchattach/site/session.py
index 791eec45..c5c0c602 100644
--- a/scratchattach/site/session.py
+++ b/scratchattach/site/session.py
@@ -352,7 +352,7 @@ def create_project(self, *, title=None, project_json=empty_project_json, parent_
 
         Warning:
             Don't spam this method - it WILL get you banned from Scratch.
-            To prevendfvt accidental spam, a rate limit (5 projects per minute) is implemented for this function.
+            To prevent accidental spam, a rate limit (5 projects per minute) is implemented for this function.
         """
         global CREATE_PROJECT_USES
         if len(CREATE_PROJECT_USES) < 5:
@@ -536,7 +536,7 @@ def _make_linked_object(self, identificator_name, identificator, Class, NotFound
         return commons._get_object(identificator_name, identificator, Class, NotFoundException, self)
 
 
-    def connect_user(self, username):
+    def connect_user(self, username) -> 'user.User':
         """
         Gets a user using this session, connects the session to the User object to allow authenticated actions
 
@@ -717,7 +717,7 @@ def connect_filterbot(self, *, log_deletions=True):
         
 # ------ #
 
-def login_by_id(session_id, *, username=None, password=None, xtoken=None):
+def login_by_id(session_id, *, username=None, password=None, xtoken=None) -> Session:
     """
     Creates a session / log in to the Scratch website with the specified session id.
     Structured similarly to Session._connect_object method.
@@ -754,7 +754,7 @@ def login_by_id(session_id, *, username=None, password=None, xtoken=None):
             print(f"Warning: Logged in by id, but couldn't fetch session info. This won't affect any other features.")
     return _session
 
-def login(username, password, *, timeout=10):
+def login(username, password, *, timeout=10) -> Session:
     """
     Creates a session / log in to the Scratch website with the specified username and password.