---
title: KM0500A: ERROR_UnknownFileFormat
---

|            |           |
|------------|---------- |
| Message    | Unknown file format <param>; only Markdown \(\.md\), JSON \(\.json\), and Text \(\.txt\) are supported\. |
| Module     | [kmc.InfrastructureMessages](kmc.infrastructuremessages) |
| Identifier | `ERROR_UnknownFileFormat` |