尝试使用 isdtp 参数.在经典中，它用于强制查看没有侧边栏或标题的页面，例如将 isdtp=vw 添加到随机页面并查看会发生什么.

Try with isdtp parameter. In classic it was used to force view pages without sidebar or header, for example add isdtp=vw to a random page and see what happens.

https://my_company.my.salesforce.com/00O.....?isdtp=p1&export=1&enc=UTF-8&xf=csv ?

(不知道什么是p1"，但这是我在 Chrome 下载历史记录中看到的，作为报告源 URL 的一部分)

(no idea what's 'p1' but that's what I see in Chrome's download history as part of the report's source URL)