How Excel’s New Link Policy Will Impact Your Business

Hey spreadsheet warriors! Got a habit of linking your Excel files to random stuff across the internet?  Well, Microsoft just said: “Nope. Not anymore.”

Starting October 2025, Excel will start blocking links to sketchy file types. Why? Because cybercriminals love turning innocent-looking spreadsheets into malware delivery trucks. Click a link, boom - your system’s now a hacker’s playground.

So, if your workbook links to anything shady, expect a big fat “#BLOCKED” error. Refreshing that data? Creating new links? Forget it. Excel’s locking the door. If your business relies on these links, it’s time to clean house.  Audit your spreadsheets. Replace risky links. 

And maybe - just maybe - stop opening random Excel files from strangers.

Microsoft’s not trying to ruin your day. They’re just tired of Excel being the malware MVP. So, update your systems, train your team, and let Simplex-IT help you stay safe.

Excel’s growing up. Time for your security habits to do the same.

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