> For the complete documentation index, see [llms.txt](https://docs.datasaur.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.datasaur.ai/workspace-management/file-transformer/upload-file-transformer.md).

# Upload File Transformer

To create a file transformer, you can also upload an existing script. Only files with `.js`, `.ts`, and `.txt` extensions are supported.

Use the **Upload** button on the right side of the editor to upload the file.

<figure><img src="/files/EoPPCLdrXMHL4fJRKbK7" alt=""><figcaption></figcaption></figure>

After uploading, the current file transformer will be replaced with the newly updated version.

<figure><img src="/files/CALZd7vv12UFx2F3v3uO" alt=""><figcaption></figcaption></figure>