diff --git a/__pycache__/app.cpython-312.pyc b/__pycache__/app.cpython-312.pyc
new file mode 100644
index 0000000..a0feb2f
Binary files /dev/null and b/__pycache__/app.cpython-312.pyc differ
diff --git a/app.py b/app.py
index 64a3e4c..8f7f717 100644
--- a/app.py
+++ b/app.py
@@ -1,11 +1,8 @@
 from fastapi import FastAPI, Request
 from fastapi.staticfiles import StaticFiles
 from pydantic import BaseModel
-from reportlab.pdfgen import canvas
-from reportlab.lib.pagesizes import A4
-from reportlab.pdfbase.ttfonts import TTFont
-from reportlab.pdfbase import pdfmetrics
-from reportlab.pdfbase.pdfmetrics import stringWidth
+from openpyxl import Workbook
+from openpyxl.styles import Font, Alignment
 import uuid, os
 
 app = FastAPI()
@@ -13,37 +10,79 @@ app = FastAPI()
 os.makedirs("static", exist_ok=True)
 app.mount("/static", StaticFiles(directory="static"), name="static")
 
-pdfmetrics.registerFont(TTFont("TWFont", "NotoSansTC-Medium.ttf"))
 
 class TextRequest(BaseModel):
     content: str
+    separator: str = "\t"  # 預設使用 Tab 分隔符
+    has_header: bool = False  # 是否第一行是標題
 
-@app.post("/generate-pdf")
-def generate_pdf(data: TextRequest, request: Request):
-    filename = f"{uuid.uuid4()}.pdf"
+@app.post("/generate-excel")
+def generate_excel(data: TextRequest, request: Request):
+    filename = f"{uuid.uuid4()}.xlsx"
     filepath = os.path.join("static", filename)
 
-    c = canvas.Canvas(filepath, pagesize=A4)
-    c.setFont("TWFont", 12)
+    # 創建新的工作簿
+    wb = Workbook()
+    ws = wb.active
+    ws.title = "文字內容"
 
-    text_obj = c.beginText(50, 800)
-    text_obj.setFont("TWFont", 12)
+    # 將文字內容按行分割
+    lines = data.content.splitlines()
+    
+    if not lines:
+        return {"error": "沒有提供文字內容"}
 
-    max_line_width = A4[0] - 50 * 2  # 頁寬扣左右邊距
+    # 分析第一行來確定欄位數量
+    first_line = lines[0]
+    columns = first_line.split(data.separator)
+    num_columns = len(columns)
+    
+    # 設置標題（如果有指定）
+    start_row = 1
+    if data.has_header and len(lines) > 1:
+        # 第一行作為標題
+        for col_idx, header in enumerate(columns, 1):
+            cell = ws.cell(row=1, column=col_idx, value=header.strip())
+            cell.font = Font(bold=True, size=12)
+            cell.alignment = Alignment(horizontal='center')
+        start_row = 2
+        lines = lines[1:]  # 跳過標題行
+    else:
+        # 沒有標題，第一行也是資料
+        lines = lines
 
-    for line in data.content.splitlines():
-        while stringWidth(line, "TWFont", 12) > max_line_width:
-            for i in range(len(line), 0, -1):
-                if stringWidth(line[:i], "TWFont", 12) <= max_line_width:
-                    text_obj.textLine(line[:i])
-                    line = line[i:]
-                    break
-        text_obj.textLine(line)
+    # 寫入資料
+    for row_idx, line in enumerate(lines, start=start_row):
+        columns_data = line.split(data.separator)
+        
+        # 確保每行都有足夠的欄位
+        while len(columns_data) < num_columns:
+            columns_data.append("")
+        
+        # 寫入每個欄位的資料
+        for col_idx, cell_data in enumerate(columns_data[:num_columns], 1):
+            cell = ws.cell(row=row_idx, column=col_idx, value=cell_data.strip())
+            cell.alignment = Alignment(wrap_text=True)
 
-    c.drawText(text_obj)
-    c.showPage()
-    c.save()
+    # 自動調整列寬
+    for col_idx in range(1, num_columns + 1):
+        column_letter = ws.cell(row=1, column=col_idx).column_letter
+        max_length = 0
+        
+        for row in ws.iter_rows(min_col=col_idx, max_col=col_idx):
+            for cell in row:
+                if cell.value:
+                    max_length = max(max_length, len(str(cell.value)))
+        
+        # 設置列寬，最小10，最大50
+        adjusted_width = min(max(max_length + 2, 10), 50)
+        ws.column_dimensions[column_letter].width = adjusted_width
+
+    # 保存文件
+    wb.save(filepath)
 
     return {
-        "download_url": str(request.base_url).rstrip("/") + f"/static/{filename}"
+        "download_url": str(request.base_url).rstrip("/") + f"/static/{filename}",
+        "columns": num_columns,
+        "rows": len(lines) + (1 if data.has_header else 0)
     }
diff --git a/requirements.txt b/requirements.txt
index e7caa4e..c90cf89 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 fastapi
 uvicorn
 pydantic
-reportlab
+openpyxl
 python-multipart