> For the complete documentation index, see [llms.txt](https://docs.wem.io/platform/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wem.io/platform/wemreference/data-types/file.md). # File ### Description The File datatype is used to store files. This can include a video, audio file, pictures, text documents and many more. When uploading files, there is a limit of 32MB per file. Check the specific [File Functions](/platform/wemreference/functions/files.md) for examples on how to work with files and their properties. Files have a validation property that can be used to restrict files to a certain file-type. This can change how the modeler handles this file. When an file has the image validation and this file field is added to a interaction canvas you will have the possibility to add it with the display option as image directly for example. ### Unknown An unknown value can be written as `UnknownFile`. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.wem.io/platform/wemreference/data-types/file.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. 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.