Hi @이은철
Please go to Excel > File > Account > Product Information, check the Office version name and version number.
Please make sure you signed in the account bound with enterprise license of Microsoft 365 subscription (Such as E3/E5 licenses.) in Office.
Besides, it's best in Current channel for updates. For more, please refer to the blog 'Automate your tasks with the Automate tab—now in Excel for Windows and Mac'.
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