# Batch Processing Playground

> Map your CSV columns, generate the Egon Batch .trk descriptor, and validate it before you upload your dataset to the SFTP input folder.

The interactive Batch Processing Playground validates and corrects your `.trk` descriptor before you upload it, so the batch runs without mapping errors. It does not process records or produce output.

| Step | Description |
| --- | --- |
| 1. Input & Mapping | Load a sample dataset or your own CSV (pipe or semicolon), then map each column to a `.trk` directive manually or with auto-detection. |
| 2. TRK Generation & Validation | Compile the `.trk` descriptor, check it for errors (for example a missing `[IN_ISO]` column in multi-country batches) and download it once it is valid. |