Prepend CSV Column

Generates a modified version of a comma-separated values file by inserting new data into a specified column position. Users upload an existing CSV file, then define the contents for the new leading column. The tool processes the input row by row, prepending the designated value or series of values to every record in the dataset while maintaining all original data integrity and structure. Developers and data analysts utilize this utility when they need to enrich datasets before further processing or integration into other systems. It is particularly useful for adding metadata identifiers, timestamps, or categorical flags consistently across large collections of records. The function streamlines the preparation phase of ETL (Extract, Transform, Load) workflows that require standardized column headers or supplemental information.