Merged in feature/postprocess-script (pull request #843)

Add postprocess script

* Add postprocess script


Approved-by: Siddhant Medar

fieldExtraction/scripts/postprocess_existing_output.py

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+import pandas as pd
+from constants.constants import Constants
+from src.investment.postprocess import postprocess
+
+# File paths
+input_excel_path = "input.xlsx"
+output_csv_path = "output.csv"
+
+# Read Excel file into DataFrame
+print(f"Reading Excel file: {input_excel_path}")
+df = pd.read_excel(input_excel_path, dtype=str)
+print(f"Loaded {len(df)} rows from Excel")
+
+# Initialize Constants
+constants = Constants()
+
+# Process the DataFrame
+print("Processing data through postprocess()...")
+df_processed = postprocess(df, constants)
+print(f"Processing complete. Output has {len(df_processed)} rows")
+
+# Write to CSV
+print(f"Writing CSV file: {output_csv_path}")
+df_processed.to_csv(output_csv_path, index=False)
+print("Done!")
+
+
+
+
+
+