Update Dockerfile

Dockerfile

@@ -19,7 +19,7 @@ RUN mkdir -p /data/.hf/cache /data/.cache/huggingface \
 # Copy files first (owned by root initially)
 COPY app.py . 
 COPY requirements.txt .
-COPY INS.csv .
+COPY INS.xlsx .
 
 # Install Python deps
 RUN pip install --no-cache-dir -r requirements.txt