# 常见问题

收录使用过程中常见的疑问与排查思路。如未在此找到答案，欢迎到 [GitHub Issues](https://github.com/viest/php-ext-xlswriter/issues) 反馈。

* [xls 转 xlsx 后无法读取](https://github.com/viest/php-ext-xlswriter/issues/236)


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# Agent Instructions: 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:

```
GET https://xlswriter-docs.viest.me/zhong-wen-jian-ti/faq.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.