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Office
A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.
1,557 questions
Hi @东宇 陆,
This is an English forum, I suggest you transform your question in English. The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.
About your problem, you want to change Office 2021 to Office 365. They are 2 different products, there is no relationship between them. If you want to use Office 365, you should buy the new license for Office 365. I suggest you contact the sales to get more information.
Just checking in to see if the information was helpful. Please let us know if you would like further assistance.
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