> For the complete documentation index, see [llms.txt](https://documentation.astera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.astera.com/dataflows/sources.md).

# Sources

- [Data Providers and File Formats Supported in Astera Data Stack](https://documentation.astera.com/dataflows/sources/data-providers-and-file-formats-supported-in-astera-data-stack.md)
- [Setting Up Sources](https://documentation.astera.com/dataflows/sources/setting-up-sources.md)
- [Excel Workbook Source](https://documentation.astera.com/dataflows/sources/excel-workbook-source.md)
- [COBOL File Source](https://documentation.astera.com/dataflows/sources/cobol-file-source.md)
- [Database Table Source](https://documentation.astera.com/dataflows/sources/database-table-source.md)
- [Database Table Source](https://documentation.astera.com/dataflows/sources/database-table-source-1.md)
- [Delimited File Source](https://documentation.astera.com/dataflows/sources/delimited-file-source.md)
- [File System Items Source](https://documentation.astera.com/dataflows/sources/file-system-items-source.md)
- [Fixed Length File Source](https://documentation.astera.com/dataflows/sources/fixed-length-file-source.md)
- [Email Source](https://documentation.astera.com/dataflows/sources/email-source.md)
- [Report Source](https://documentation.astera.com/dataflows/sources/report-source.md)
- [Smart Document Source](https://documentation.astera.com/dataflows/sources/smart-document-source.md)
- [SQL Query Source](https://documentation.astera.com/dataflows/sources/sql-query-source.md)
- [Text Converter](https://documentation.astera.com/dataflows/sources/text-converter.md)
- [XML/JSON File Source](https://documentation.astera.com/dataflows/sources/xml-json-file-source.md)
- [PDF Form Source](https://documentation.astera.com/dataflows/sources/pdf-form-source.md)
- [Parquet File Source (Beta)](https://documentation.astera.com/dataflows/sources/parquet-file-source-beta.md)
- [MongoDB Source (Beta)](https://documentation.astera.com/dataflows/sources/mongodb-source-beta.md)
- [Data Model Query](https://documentation.astera.com/dataflows/sources/data-model-query.md)


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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.