> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdia-data-integration/10.2-data-integration/pdi-transformation-steps-reference-overview/discover-metadata-from-a-text-file/options-discover-metadata-from-a-text-file-step/delimiter-candidates-tab.md).

# Delimiter candidates tab

![Discover metadata from a text file Input tab](/files/ydHOT1mh0HWsBv7ohScF)

Enter the delimiter candidates you want to use in the file scan in the **Delimiter candidates** field of the **Delimiter candidates** tab. The delimiter candidates can be one or more characters. The step tests each candidate and all combinations of the candidates to find the most accurate match. For example, you may receive a file from two sources where the first source uses a comma delimiter and the second source uses a semi-colon delimiter. The step can determine the data structure of both files.


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