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

# Write a file with Convert to File in Duaer

In Duaer, Convert to File turns the current JSON items into a file on binary. The default Operation is Convert to CSV.
## Write a CSV

1. Search for Convert to File and connect it after a node that returns JSON items.
2. Leave Operation on Convert to CSV.
3. Put Output File in Field defaults to data. Change it when you need another binary field name.
4. Select Execute step. The file is on binary.data of the output item.

Other operations are Convert to HTML, Convert to JSON, Convert to ODS, Convert to RTF, Convert to Text File, Convert to XLS, Convert to XLSX, Convert to ICS, and Move Base64 String to File.

The file is not in json. It sits on binary. Refer to [Work with files and images in Duaer](/data/binary-data.md).
## Questions

### Does Convert to File in Duaer save onto my computer disk?

No. The file lives on the binary field of that execution. Writing the host disk needs Read/Write Files from Disk on self-hosted Duaer. A hosted instance does not have your disk.