Project 07

CSV Column Mapper

This project provides a flexible utility for restructuring CSV files by allowing users to define a custom column order. The tool is designed to support real-world data normalization scenarios where incoming CSV formats vary between sources but must conform to a standardized schema for downstream processing or import.

C# (.NET)

System.IO

CSV Parsing

Technical

Highlights

  • Parsed the CSV header row to dynamically identify existing columns and their positions.

  • Implemented an intuitive drag-and-drop UI to control column reordering logic.

  • Rewrote CSV output based on the user-defined column order while preserving row-level data integrity.

  • Added safeguards to gracefully handle missing, extra, or unexpected columns without failing the transformation.

  • Structured the transformation logic to be reusable and adaptable as schema requirements evolve.

Project

Takeaways

  • Gained experience building user-driven data transformation workflows with intuitive visual controls.

  • Developed a deeper understanding of how CSV files are parsed, manipulated, and rewritten programmatically.

  • Learned to design flexible tools that accommodate changing data formats and business requirements.