Download Security Update for Microsoft Office Excel Viewer (KB2553075) from Official Microsoft Download Center

A woman uses a Surface Pro and Surface Pen

This is your 365

Discover what's possible every day with Office 365

Security Update for Microsoft Office Excel Viewer (KB2553075)

Important! Selecting a language below will dynamically change the complete page content to that language.

Select Language:
A security vulnerability exists in Microsoft Office Excel Viewer that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.