Windows 10 ver. >= 1903 / Office 365 ver >= 16.0.116291

Web browsers used by add-ins: https://docs.microsoft.com/en-us/office/dev/add-ins/concepts/browsers-used-by-office-web-add-ins

Office versions and requirement sets: https://docs.microsoft.com/en-us/office/dev/add-ins/develop/office-versions-and-requirement-sets

How to check your Office version: https://docs.microsoft.com/en-us/office/dev/add-ins/develop/office-versions-and-requirement-sets#how-to-check-your-office-version

Install the latest version of Office: https://docs.microsoft.com/en-us/office/dev/add-ins/develop/install-latest-office-version

Custom Function Requirements: https://docs.microsoft.com/en-us/office/dev/add-ins/excel/custom-functions-architecture

Official Excel Blog: https://techcommunity.microsoft.com/t5/Excel-Blog/bg-p/ExcelBlog

Excel for the Web: https://docs.microsoft.com/en-us/office365/servicedescriptions/office-online-service-description/excel-online

Excel features desktop vs. Web: https://support.office.com/en-us/article/differences-between-using-a-workbook-in-the-browser-and-in-excel-f0dc28ed-b85d-4e1d-be6d-5878005db3b6?ui=en-US&rs=en-US&ad=US

Share & embed Excel on a web page (like Googlesheets) https://support.office.com/en-us/article/share-it-embed-an-excel-workbook-on-your-web-page-or-blog-from-onedrive-804e1845-5662-487e-9b38-f96307144081?ocmsassetID=HA102029502&CorrelationId=9db27f15-5454-46bc-a67d-957c3816a552&ui=en-US&rs=en-US&ad=US

Microsoft Excel Official Help Center: https://support.office.com/en-us/excel

Searchable Roadmap: https://www.microsoft.com/en-us/microsoft-365/roadmap?

Update history for Microsoft Office 365: https://docs.microsoft.com/en-us/officeupdates/update-history-office365-proplus-by-date

Overview of Office 365 update channels: https://docs.microsoft.com/en-us/DeployOffice/overview-of-update-channels-for-office-365-proplus

When do I get new Office features? https://support.office.com/en-us/article/when-do-i-get-the-newest-features-in-for-office-365-da36192c-58b9-4bc9-8d51-bb6eed468516