Microsoft is getting ready to disable Excel 4.0 XLM macros by default to protect users from malicious documents. The change will begin later this month and is expected to be completed by mid December, according to an email sent out to Office 365 commercial users via Bleeping Computer . Excel 4.0 macros , also known as XLM macro, is a legacy Microsoft Excel feature that was first introduced back in 1992. It is a programming code or series of instructions that enable users to automate repetitive...

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