> For the complete documentation index, see [llms.txt](https://windows.help.formit.autodesk.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://windows.help.formit.autodesk.com/zh-cn/formit-capabilities/working-with-external-data.md).

# 使用数据格式

输入各种图像文件格式和三维文件格式，以为草图添加细节。

可以输入以下文件格式：

* Windows：OBJ、DWG、STL、SAT、SKP
* Web：OBJ、STL
* iOS：OBJ、STL、SAT

有关输入数据和使用“内容库”的详细信息，请参见[输入模型](/zh-cn/formit-primer/part-i/import-export-and-content-library.md)。


---

# 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 dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://windows.help.formit.autodesk.com/zh-cn/formit-capabilities/working-with-external-data.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.