If you see The file couldn't open in protected view error while opening Microsoft Excel, the fixes listed in this post will help you.

Update Office Repair Office. 1] Close all other open programs The first thing you should do here is to close all programs that are using the Excel file you are attempting to open.

Microsoft Excel files -- and other formats that Microsoft Office applications generate -- can provide delivery mechanisms for malware payloads.

Office Scripts is an automation feature available for Excel on the web. Microsoft announced its general availability today and outlines the feature in a Tech Community post.

Learn how to use a Microsoft 365 setting to choose whether to open files in the online or desktop app, giving you full control for each file.

Launch Microsoft Office Excel 2013. You can double-click its icon on your desktop or launch it from the Start screen. Click "File," followed by "Open," "Computer" and then the "Browse" button. The ...

Image: Microsoft Table of Contents Just log in with your browser Opening and saving files Set menu view, print documents as PDFs Word Online at a glance Excel Online at a glance ...

Microsoft has announced that it will start disabling external workbook links to blocked file types by default between October 2025 and July 2026.