Enabling JavaScript should make Excel more powerful, but increasing access points makes it even more of a web security nightmare than it already is.

A newly discovered malware gang is using a clever trick to create malicious Excel files that have low detection rates and a higher chance of evading security systems. Discovered by security ...

If Excel keeps blocking files from being inserted, chances are the file is blocked by Trust Center, or maybe the workbook or locked. Here's the fix!

Microsoft reissues its Excel security update, designed to resolve a bug in the software that prevents users from opening files created in certain foreign languages.

An ongoing malicious email campaign that includes macro-laden files and multiple layers of obfuscation has been active since late December.

Microsoft said the Excel flaws could be targeted by an attacker using a malformed range, a malformed parsing format file, a malformed description, a malformed graphic or a malformed record.

Tricking someone into enabling macros on a downloaded Microsoft Excel or Word file is an old hacker chestnut. That one click from a target creates a foothold for attackers to take over their ...

This new phishing attack features a weaponized Excel file Security researchers warn about a sneaky phishing campaign from one of the most creative cybercrime groups on the internet.

Microsoft Excel lets you embed content from other applications, including PDF files. You can embed a PDF file into a cell of an Excel worksheet and then use Excel's security features to lock the ...