When everyone one excel or word doc is download from mail/online, it shows a strip with a button 'Editing mode'. This button is not accessable by the screen readers for visually impaired user.
Therefore restriction visually impaired user from using such excel, doc's from using.
Request you to resolve this blocker issue.
Thanks for sharing this feedback with us Sandeep, we have a few questions about your post. 1. What screen reader are you using with the Excel and Word files? 2. Have you tried updating your Office? 3. Have you tried pressing Alt + F + I + E to enable editing in your document or spreadsheet?