Update llm.py

llm.py

@@ -7,9 +7,10 @@ from langchain.chains.combine_documents import create_stuff_documents_chain
 from langchain.chains import create_retrieval_chain
 from langchain_community.embeddings import HuggingFaceBgeEmbeddings
 import pandas as pd
+import os
 from langchain.schema import Document
 def load_and_process_pdf():
-    df = pd.read_excel("content/chunk_metadata_template.xlsx")
+    df = pd.read_excel(os.path.join(os.getcwd(), "chunk_metadata_template.xlsx"))
     splits = []
     for i, row in df.iterrows():
         # Create a Document object for each row, including page_content and metadata