add xlrd to requirements

Author: Deepthi-Chand

requirements.txt

@@ -43,6 +43,7 @@ pandas==2.2.2
 openpyxl==3.1.2  # For Excel file support
 odfpy==1.4.1  # For ODS file support
 pyarrow==15.0.0  # For Parquet and Feather file support
+xlrd==2.0.2  # For Excel file support
 pillow==10.4.0
 protobuf==4.25.3
 pydantic==2.6.1  # Slightly downgraded for compatibility