检查以下论坛主题: 通过Powershell将SharePoint Online列表导出到csv .它显示了将列表项导出到csv(可在Excel中打开)的示例热.可能您需要添加逻辑以从doclib中导出列表项附件和文档.

check the following forum thread: Export SharePoint Online list to csv via Powershell. It shows example hot to export list items to csv which may be opened in Excel. Probably you need to add logic to export list items attachments and documents from doclibs.