diff --git a/Code/TODO.md b/Code/TODO.md
index 1505c44..a689643 100644
--- a/Code/TODO.md
+++ b/Code/TODO.md
@@ -49,7 +49,15 @@ Rationale: De-risk unknowns (Docling OCR quality, Ollama CPU inference speed) be
 **Tested Formats:**
 
 - PDF (Filing Receipt) — extracted text, tables, CJK content ✅
-- PNG (Email screenshot) — extracted subject, dates, recipient ✅ (CJK trademark garbled, may need `ocr_lang`)
+- PNG (Email screenshot) — extracted subject, dates, recipient ✅
+- PNG with `ocr_lang=ch_tra` — Traditional Chinese extracted correctly (官藥坊) ✅
+
+**Portable Chinese OCR:**
+
+- Auto-downloads `ch_sim` (Simplified) and `ch_tra` (Traditional) models on first run
+- Models persist in `docling_models` volume
+- First run takes ~1-2 min extra for model download; subsequent runs instant
+- Use `ocr_lang=ch_tra` for HK/Taiwan, `ocr_lang=ch_sim` for Mainland China
 
 ### 1b. Ollama (DONE)
 
diff --git a/Code/Tools/Service/Dockerfile b/Code/Tools/Service/Dockerfile
new file mode 100644
index 0000000..18ed63f
--- /dev/null
+++ b/Code/Tools/Service/Dockerfile
@@ -0,0 +1,12 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY main.py .
+
+EXPOSE 8000
+
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]
diff --git a/Code/Tools/Service/main.py b/Code/Tools/Service/main.py
new file mode 100644
index 0000000..512dbcd
--- /dev/null
+++ b/Code/Tools/Service/main.py
@@ -0,0 +1,200 @@
+"""
+Generic Excel API Service
+
+A FastAPI service for reading Excel files (.xlsx).
+All file paths are relative to /data/ mount.
+
+Endpoints:
+- GET /health - Health check
+- GET /excel/sheets - List all sheet names
+- GET /excel/schema - Get column headers
+- GET /excel/read - Read all rows
+- GET /excel/row/{row_num} - Get specific row (1-indexed)
+"""
+
+from fastapi import FastAPI, HTTPException, Query
+from pydantic import BaseModel
+from pathlib import Path
+from typing import Optional
+from openpyxl import load_workbook
+import os
+
+app = FastAPI(
+    title="JingTian Tools Service",
+    description="Generic Excel API for reading xlsx files",
+    version="0.2.0",
+)
+
+DATA_ROOT = Path(os.getenv("DATA_ROOT", "/data"))
+
+
+def get_workbook(file_path: str):
+    """Load workbook from file path relative to DATA_ROOT."""
+    full_path = DATA_ROOT / file_path
+    if not full_path.exists():
+        raise HTTPException(status_code=404, detail=f"File not found: {file_path}")
+    if not full_path.suffix.lower() == ".xlsx":
+        raise HTTPException(status_code=400, detail="Only .xlsx files supported")
+    try:
+        return load_workbook(full_path, read_only=True, data_only=True)
+    except Exception as e:
+        raise HTTPException(
+            status_code=500, detail=f"Failed to open workbook: {str(e)}"
+        )
+
+
+def get_sheet(wb, sheet_name: str):
+    """Get sheet by name."""
+    if sheet_name not in wb.sheetnames:
+        raise HTTPException(
+            status_code=404,
+            detail=f"Sheet '{sheet_name}' not found. Available: {wb.sheetnames}",
+        )
+    return wb[sheet_name]
+
+
+def cell_to_str(cell_value) -> str:
+    """Convert cell value to string, empty string for None."""
+    if cell_value is None:
+        return ""
+    return str(cell_value)
+
+
+@app.get("/health")
+async def health():
+    return {"status": "healthy", "service": "tools", "version": "0.2.0"}
+
+
+@app.get("/excel/sheets")
+async def list_sheets(
+    file_path: str = Query(..., description="Path to xlsx file relative to /data/"),
+):
+    """List all sheet names in the workbook."""
+    wb = get_workbook(file_path)
+    sheets = wb.sheetnames
+    wb.close()
+    return {"file_path": file_path, "sheets": sheets, "count": len(sheets)}
+
+
+@app.get("/excel/schema")
+async def get_schema(
+    file_path: str = Query(..., description="Path to xlsx file relative to /data/"),
+    sheet_name: str = Query(..., description="Sheet name to read"),
+    header_row: int = Query(1, description="Row number containing headers (1-indexed)"),
+):
+    """Get column headers from the specified sheet."""
+    wb = get_workbook(file_path)
+    ws = get_sheet(wb, sheet_name)
+
+    headers = []
+    for cell in ws[header_row]:
+        headers.append(cell_to_str(cell.value))
+
+    wb.close()
+    return {
+        "file_path": file_path,
+        "sheet_name": sheet_name,
+        "header_row": header_row,
+        "columns": headers,
+        "column_count": len(headers),
+    }
+
+
+@app.get("/excel/read")
+async def read_all(
+    file_path: str = Query(..., description="Path to xlsx file relative to /data/"),
+    sheet_name: str = Query(..., description="Sheet name to read"),
+    header_row: int = Query(1, description="Row number containing headers (1-indexed)"),
+    start_row: Optional[int] = Query(
+        None,
+        description="Start reading from this row (1-indexed, defaults to header_row + 1)",
+    ),
+    limit: Optional[int] = Query(None, description="Max rows to return"),
+):
+    """Read all rows from the specified sheet."""
+    wb = get_workbook(file_path)
+    ws = get_sheet(wb, sheet_name)
+
+    # Get headers
+    headers = [cell_to_str(cell.value) for cell in ws[header_row]]
+
+    # Determine data start row
+    data_start = start_row if start_row else header_row + 1
+
+    # Read rows
+    rows = []
+    row_count = 0
+    for row_num, row in enumerate(ws.iter_rows(min_row=data_start), start=data_start):
+        # Stop if limit reached
+        if limit and row_count >= limit:
+            break
+
+        # Skip completely empty rows
+        values = [cell_to_str(cell.value) for cell in row]
+        if all(v == "" for v in values):
+            continue
+
+        # Build row dict with headers as keys
+        row_data = {"_row_num": row_num}
+        for i, header in enumerate(headers):
+            if i < len(values):
+                key = header if header else f"_col_{i + 1}"
+                row_data[key] = values[i]
+
+        rows.append(row_data)
+        row_count += 1
+
+    wb.close()
+    return {
+        "file_path": file_path,
+        "sheet_name": sheet_name,
+        "columns": headers,
+        "rows": rows,
+        "row_count": len(rows),
+    }
+
+
+@app.get("/excel/row/{row_num}")
+async def get_row(
+    row_num: int,
+    file_path: str = Query(..., description="Path to xlsx file relative to /data/"),
+    sheet_name: str = Query(..., description="Sheet name to read"),
+    header_row: int = Query(1, description="Row number containing headers (1-indexed)"),
+):
+    """Get a specific row by row number (1-indexed)."""
+    if row_num < 1:
+        raise HTTPException(status_code=400, detail="Row number must be >= 1")
+
+    wb = get_workbook(file_path)
+    ws = get_sheet(wb, sheet_name)
+
+    # Get headers
+    headers = [cell_to_str(cell.value) for cell in ws[header_row]]
+
+    # Get the specific row
+    try:
+        row = ws[row_num]
+    except Exception:
+        wb.close()
+        raise HTTPException(status_code=404, detail=f"Row {row_num} not found")
+
+    values = [cell_to_str(cell.value) for cell in row]
+
+    # Build row dict
+    row_data = {"_row_num": row_num}
+    for i, header in enumerate(headers):
+        if i < len(values):
+            key = header if header else f"_col_{i + 1}"
+            row_data[key] = values[i]
+
+    wb.close()
+    return {"file_path": file_path, "sheet_name": sheet_name, "row": row_data}
+
+
+# Future endpoints (Phase 2 & 3)
+# POST /excel/row - Add new row
+# PUT /excel/row/{row_num} - Update row
+# DELETE /excel/row/{row_num} - Delete row
+# POST /excel/column - Add column
+# POST /excel/format - Apply formatting
+# POST /excel/create - Create new workbook
diff --git a/Code/Tools/Service/requirements.txt b/Code/Tools/Service/requirements.txt
new file mode 100644
index 0000000..eba4ac8
--- /dev/null
+++ b/Code/Tools/Service/requirements.txt
@@ -0,0 +1,4 @@
+fastapi==0.115.0
+uvicorn==0.30.6
+openpyxl==3.1.5
+pydantic==2.9.0
diff --git a/Code/docker-compose.yaml b/Code/docker-compose.yaml
index aee4c46..d4f50b5 100644
--- a/Code/docker-compose.yaml
+++ b/Code/docker-compose.yaml
@@ -58,20 +58,23 @@ services:
             retries: 5
             start_period: 120s
 
-    # Tools (Python FastAPI - Excel operations)
-    # tools:
-    #     build: ./Tools/Service
-    #     container_name: jt-tools
-    #     restart: unless-stopped
-    #     volumes:
-    #         - /data/jingtian/BenjaminTeam:/data:rw
-    #     ports:
-    #         - "8080:8080"
-    #     healthcheck:
-    #         test: ["CMD", "curl", "-sf", "http://localhost:8080/health"]
-    #         interval: 30s
-    #         timeout: 10s
-    #         retries: 3
+    # Tools (Python FastAPI - Generic Excel API)
+    tools:
+        build: ./Tools/Service
+        container_name: jt-tools
+        restart: unless-stopped
+        environment:
+            DATA_ROOT: /data
+        volumes:
+            - /data/jingtian/BenjaminTeam:/data:rw
+        ports:
+            - "8000:8000"
+        healthcheck:
+            test: ["CMD", "curl", "-sf", "http://localhost:8000/health"]
+            interval: 30s
+            timeout: 10s
+            retries: 3
+            start_period: 10s
 
 volumes:
     docling_models: