Microsoft Excel Is Making a Major Change Around Blocked File Types - Here's What We Know

Microsoft Excel is making a major change around blocked file types - here's what we know

Microsoft is making an important change to Excel to prevent attackers from spreading malware or phishing campaigns.

Microsoft to disable Excel workbook links to blocked file types

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

Microsoft Excel is making a major change around blocked file types - here's what we know - WorldNL Magazine

Microsoft Excel will now disable blocked file types from workbook links by defaultThe files will either fail to refresh or show a #BLOCKED errorOther safety updates are coming to Excel soon, so be sure to updateExternal workbook links which point to file types blocked by Excel's Trust Center will be disabled by default starting in October 2025, as Microsoft tightens down on reducing the potential security risks associated with indirect access to…