Update requirements.txt

requirements.txt

@@ -19,9 +19,14 @@ faiss-cpu==1.7.4
 numpy==1.26.4
 pymupdf==1.24.5 
 scikit-learn==1.4.2
-pinecone[grpc]==5.3.1
 cachetools==5.3.3
 langchain-text-splitters==0.3.9
 torch==2.2.2
 nltk==3.9.1
-flashrank==0.2.10
+flashrank==0.2.10
+python-pptx==0.6.23
+openpyxl==3.1.2
+pillow==10.3.0 
+python-docx==1.1.2
+pytesseract==0.3.10 
+unstructured[pytesseract]==0.12.5