Update app.py

app.py

@@ -45,7 +45,7 @@ class ExcelAIQuerySystem:
                     markdown_text = df.to_markdown(index=False)
                     
                     # Create documents and split them into chunks
-                    doc = Document(page_content=markdown_text, metadata={"sheet_name": sheet_name})
+                    doc = Document(page_content=markdown_text, metadata={"source": sheet_name})
                     chunks = text_splitter.split_documents([doc])
                     
                     # Create a FAISS vector store for the chunks