diff --git a/plugins/exporter_plugin/__init__.py b/plugins/exporter_plugin/__init__.py
index 21350fa30..9142724d2 100644
--- a/plugins/exporter_plugin/__init__.py
+++ b/plugins/exporter_plugin/__init__.py
@@ -1,3 +1,15 @@
-ALL_PLUGIN_EXPORTERS = [
+ALL_PLUGIN_EXPORTERS = []
 
-]
+# Example to add the Google Sheets exporter
+#
+# from lib.export.exporters.gspread_exporter import GoogleSheetsExporter
+#
+# GOOGLE_CLIENT_CONFIG = {...}  # from your Google Cloud OAuth credentials JSON
+# ALL_PLUGIN_EXPORTERS = [GoogleSheetsExporter(GOOGLE_CLIENT_CONFIG)]
+
+# Example to add the SharePoint / OneDrive exporter
+# Requires env vars: SHAREPOINT_CLIENT_ID, SHAREPOINT_TENANT_ID, SHAREPOINT_CLIENT_SECRET
+#
+# from lib.export.exporters.sharepoint_exporter import SharePointExporter
+#
+# ALL_PLUGIN_EXPORTERS = [SharePointExporter()]
diff --git a/querybook/server/lib/export/exporters/sharepoint_exporter.py b/querybook/server/lib/export/exporters/sharepoint_exporter.py
new file mode 100644
index 000000000..530c65a80
--- /dev/null
+++ b/querybook/server/lib/export/exporters/sharepoint_exporter.py
@@ -0,0 +1,346 @@
+import io
+import os
+from itertools import islice
+from typing import Generator, List, Optional, Tuple
+from urllib.parse import urlparse
+
+import msal
+import openpyxl
+import requests
+from flask import request as flask_request
+from flask_login import current_user
+
+from app.flask_app import flask_app
+from env import QuerybookSettings
+from lib.export.base_exporter import BaseExporter
+from lib.form import FormField, StructFormField
+from lib.logger import get_logger
+from logic.query_execution import (
+    get_statement_execution_by_id,
+    update_statement_execution,
+)
+from logic.user import get_user_by_id, update_user_properties
+
+LOG = get_logger(__file__)
+
+GRAPH_API_BASE = "https://graph.microsoft.com/v1.0"
+SHAREPOINT_OAUTH_CALLBACK = "/sharepoint_oauth2callback"
+
+SCOPES = [
+    "https://graph.microsoft.com/Files.ReadWrite",
+    "https://graph.microsoft.com/Sites.ReadWrite.All",
+    "offline_access",
+]
+
+MAX_ROWS_PER_BATCH = 1000
+
+
+class UserTokenNotFound(Exception):
+    pass
+
+
+class SharePointExporter(BaseExporter):
+    """Export query results to a SharePoint or OneDrive Excel workbook.
+
+    Requires an Azure AD app registration with:
+        SHAREPOINT_CLIENT_ID     — Azure AD application (client) ID
+        SHAREPOINT_TENANT_ID     — Azure AD tenant ID, or "common" for multi-tenant
+        SHAREPOINT_CLIENT_SECRET — Client secret
+    """
+
+    def __init__(self):
+        super().__init__()
+        self._client_id = os.environ.get("SHAREPOINT_CLIENT_ID")
+        self._tenant_id = os.environ.get("SHAREPOINT_TENANT_ID", "common")
+        self._client_secret = os.environ.get("SHAREPOINT_CLIENT_SECRET")
+        self._authority = f"https://login.microsoftonline.com/{self._tenant_id}"
+
+    @property
+    def exporter_name(self):
+        return "Export Result to SharePoint Excel"
+
+    @property
+    def exporter_type(self):
+        return "url"
+
+    @property
+    def requires_auth(self):
+        return True
+
+    @property
+    def export_form(self):
+        return StructFormField(
+            (
+                "workbook_name",
+                FormField(
+                    description="Excel filename (e.g. results.xlsx). Created if it doesn't exist.",
+                    helper="The file is saved to your OneDrive root, or to the SharePoint folder specified below.",
+                ),
+            ),
+            (
+                "worksheet_name",
+                FormField(
+                    description='Worksheet tab name. Defaults to "Sheet1".',
+                ),
+            ),
+            (
+                "sharepoint_site_url",
+                FormField(
+                    description="Optional SharePoint site URL (e.g. https://contoso.sharepoint.com/sites/myteam). Leave blank to use your OneDrive.",
+                ),
+            ),
+            (
+                "folder_path",
+                FormField(
+                    description="Optional folder path within the drive (e.g. Documents/Reports). Leave blank for root.",
+                ),
+            ),
+        )
+
+    # ------------------------------------------------------------------ #
+    # Auth                                                                 #
+    # ------------------------------------------------------------------ #
+
+    def _msal_app(self, cache: msal.SerializableTokenCache = None):
+        return msal.ConfidentialClientApplication(
+            self._client_id,
+            authority=self._authority,
+            client_credential=self._client_secret,
+            token_cache=cache,
+        )
+
+    def acquire_auth(self, uid: int) -> Optional[str]:
+        try:
+            self._get_access_token(uid)
+            return None
+        except UserTokenNotFound:
+            redirect_uri = f"{QuerybookSettings.PUBLIC_URL}{SHAREPOINT_OAUTH_CALLBACK}"
+            auth_url = self._msal_app().get_authorization_request_url(
+                SCOPES,
+                redirect_uri=redirect_uri,
+                state=str(uid),
+            )
+            return auth_url
+
+    def _get_access_token(self, uid: int) -> str:
+        user = get_user_by_id(uid)
+        if not (user and "sharepoint_token" in (user.properties or {})):
+            raise UserTokenNotFound()
+
+        cache = msal.SerializableTokenCache()
+        cache.deserialize(user.properties["sharepoint_token"])
+
+        app = self._msal_app(cache)
+        accounts = app.get_accounts()
+        if not accounts:
+            raise UserTokenNotFound()
+
+        result = app.acquire_token_silent(SCOPES, account=accounts[0])
+        if not result or "access_token" not in result:
+            raise UserTokenNotFound()
+
+        if cache.has_state_changed:
+            update_user_properties(uid, sharepoint_token=cache.serialize())
+
+        return result["access_token"]
+
+    # ------------------------------------------------------------------ #
+    # Graph API helpers                                                    #
+    # ------------------------------------------------------------------ #
+
+    def _auth_headers(self, token: str) -> dict:
+        return {"Authorization": f"Bearer {token}", "Content-Type": "application/json"}
+
+    def _graph_get(self, token: str, url: str) -> dict:
+        resp = requests.get(url, headers=self._auth_headers(token))
+        resp.raise_for_status()
+        return resp.json()
+
+    def _graph_patch(self, token: str, url: str, body: dict) -> dict:
+        resp = requests.patch(url, headers=self._auth_headers(token), json=body)
+        resp.raise_for_status()
+        return resp.json()
+
+    def _graph_post(self, token: str, url: str, body: dict) -> dict:
+        resp = requests.post(url, headers=self._auth_headers(token), json=body)
+        resp.raise_for_status()
+        return resp.json()
+
+    # ------------------------------------------------------------------ #
+    # Drive resolution                                                     #
+    # ------------------------------------------------------------------ #
+
+    def _resolve_drive_root(self, token: str, sharepoint_site_url: str = None) -> str:
+        """Return the Graph API base URL for the target drive."""
+        if sharepoint_site_url:
+            parsed = urlparse(sharepoint_site_url)
+            hostname = parsed.hostname
+            site_path = parsed.path.rstrip("/")
+            site = self._graph_get(
+                token, f"{GRAPH_API_BASE}/sites/{hostname}:{site_path}"
+            )
+            return f"{GRAPH_API_BASE}/sites/{site['id']}/drive"
+        return f"{GRAPH_API_BASE}/me/drive"
+
+    def _get_or_create_workbook(
+        self, token: str, drive_root: str, folder_path: str, workbook_name: str
+    ) -> Tuple[str, str]:
+        """Return (item_id, web_url), creating the workbook if it doesn't exist."""
+        if not workbook_name.endswith(".xlsx"):
+            workbook_name += ".xlsx"
+
+        file_path = (
+            f"{folder_path.strip('/')}/{workbook_name}" if folder_path else workbook_name
+        )
+        content_url = f"{drive_root}/root:/{file_path}:/content"
+
+        # Try to fetch existing item metadata
+        meta_url = f"{drive_root}/root:/{file_path}"
+        try:
+            existing = self._graph_get(token, meta_url)
+            return existing["id"], existing.get("webUrl", "")
+        except requests.HTTPError as exc:
+            if exc.response.status_code != 404:
+                raise
+
+        # Create a minimal empty .xlsx
+        wb = openpyxl.Workbook()
+        buf = io.BytesIO()
+        wb.save(buf)
+        buf.seek(0)
+
+        resp = requests.put(
+            content_url,
+            headers={
+                "Authorization": f"Bearer {token}",
+                "Content-Type": (
+                    "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
+                ),
+            },
+            data=buf.read(),
+        )
+        resp.raise_for_status()
+        data = resp.json()
+        return data["id"], data.get("webUrl", "")
+
+    def _ensure_worksheet(
+        self, token: str, drive_root: str, item_id: str, worksheet_name: str
+    ):
+        sheets_url = f"{drive_root}/items/{item_id}/workbook/worksheets"
+        sheets = self._graph_get(token, sheets_url).get("value", [])
+        if not any(s["name"] == worksheet_name for s in sheets):
+            self._graph_post(token, sheets_url, {"name": worksheet_name})
+
+    def _write_rows(
+        self,
+        token: str,
+        drive_root: str,
+        item_id: str,
+        worksheet_name: str,
+        rows: Generator[List[List[str]], None, None],
+    ):
+        row_offset = 0
+        while True:
+            chunk = list(islice(rows, MAX_ROWS_PER_BATCH))
+            if not chunk:
+                break
+
+            num_cols = len(chunk[0]) if chunk else 1
+            num_rows = len(chunk)
+            start_row = row_offset + 1
+            end_row = row_offset + num_rows
+            address = f"A{start_row}:{_col_index_to_letter(num_cols)}{end_row}"
+
+            range_url = (
+                f"{drive_root}/items/{item_id}/workbook/worksheets"
+                f"/{worksheet_name}/range(address='{address}')"
+            )
+            self._graph_patch(token, range_url, {"values": chunk})
+
+            row_offset += num_rows
+            if num_rows < MAX_ROWS_PER_BATCH:
+                break
+
+    # ------------------------------------------------------------------ #
+    # Export entrypoint                                                    #
+    # ------------------------------------------------------------------ #
+
+    def export(
+        self,
+        statement_execution_id: int,
+        uid: int,
+        workbook_name: str = "querybook_result",
+        worksheet_name: str = "Sheet1",
+        sharepoint_site_url: str = None,
+        folder_path: str = None,
+    ) -> str:
+        token = self._get_access_token(uid)
+        drive_root = self._resolve_drive_root(token, sharepoint_site_url)
+        item_id, web_url = self._get_or_create_workbook(
+            token, drive_root, folder_path, workbook_name
+        )
+        self._ensure_worksheet(token, drive_root, item_id, worksheet_name)
+
+        rows = self._get_statement_execution_result_iter(statement_execution_id)
+        self._write_rows(token, drive_root, item_id, worksheet_name, rows)
+
+        statement_execution = get_statement_execution_by_id(statement_execution_id)
+        meta_info = (
+            statement_execution.meta_info or ""
+        ) + f"SharePoint URL: {web_url}\n"
+        update_statement_execution(statement_execution_id, meta_info=meta_info)
+
+        return web_url
+
+
+# ------------------------------------------------------------------ #
+# OAuth2 callback route                                               #
+# ------------------------------------------------------------------ #
+
+
+@flask_app.route(SHAREPOINT_OAUTH_CALLBACK)
+def sharepoint_oauth_callback():
+    try:
+        code = flask_request.args.get("code")
+        uid = int(flask_request.args.get("state"))
+        redirect_uri = f"{QuerybookSettings.PUBLIC_URL}{SHAREPOINT_OAUTH_CALLBACK}"
+
+        cache = msal.SerializableTokenCache()
+        app = msal.ConfidentialClientApplication(
+            os.environ.get("SHAREPOINT_CLIENT_ID"),
+            authority=f"https://login.microsoftonline.com/{os.environ.get('SHAREPOINT_TENANT_ID', 'common')}",
+            client_credential=os.environ.get("SHAREPOINT_CLIENT_SECRET"),
+            token_cache=cache,
+        )
+        result = app.acquire_token_by_authorization_code(
+            code,
+            scopes=SCOPES,
+            redirect_uri=redirect_uri,
+        )
+        if "error" in result:
+            return f"Authentication failed: {result.get('error_description', result['error'])}"
+
+        update_user_properties(uid, sharepoint_token=cache.serialize())
+    except Exception as exc:
+        return f"Failed to obtain credentials: {exc}"
+
+    return """
+        <p>Success! Please close this tab.</p>
+        <script>
+            window.opener.receiveChildMessage()
+        </script>
+    """
+
+
+# ------------------------------------------------------------------ #
+# Utility                                                             #
+# ------------------------------------------------------------------ #
+
+
+def _col_index_to_letter(col: int) -> str:
+    """Convert 1-based column index to Excel column letter (1→A, 27→AA)."""
+    result = ""
+    while col > 0:
+        col, rem = divmod(col - 1, 26)
+        result = chr(65 + rem) + result
+    return result
diff --git a/requirements/exporter/sharepoint.txt b/requirements/exporter/sharepoint.txt
new file mode 100644
index 000000000..74740316a
--- /dev/null
+++ b/requirements/exporter/sharepoint.txt
@@ -0,0 +1,2 @@
+msal==1.31.1
+openpyxl==3.1.5