Embedded SharePoint Online Excel file doesn't display horizontal scrollbar
When embedding a Excel online file into normal CSS webpage using codes, Online Excel file doesn't display horizontal scrollbar.
The only way to get to the data to the right of the view port is to click on a cell and then use the right arrow key to scroll to the right.
Codes referenced from this official article.
https://support.microsoft.com/en-us/office/embed-your-excel-workbook-on-your-web-page-or-blog-from-sharepoint-or-onedrive-for-business-7af74ce6-e8a0-48ac-ba3b-a1dd627b7773
sample : <iframe height="500" width="100%" frameborder="0" scrolling="no" src="[SharingURL]&action=embedview&wdHideSheetTabs=True&wdAllowInteractivity=False&wdHideGridlines=True&wdDownloadButton=True"></iframe>
Screen shot attached.

I would like to share with you that this bug is now fixed.
Thank you for reaching out and providing such a detailed information on the issue. It is was super helpful and allowed us fixing the issue quickly.
We will be happy to get more feedback from you in the future.
Thanks,
Excel Team
1 comment
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Eric Z commented
More information is available here: https://stackoverflow.com/q/62893083