External Excel workbook links to blocked file types will be disabled by default - Starting October 2025, external workbook links to blocked file types will be disabled by default.
External Excel workbook links to blocked file types will be disabled by default - Starting October 2025, external workbook links to blocked file types will be disabled by default.
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MC1125497 - External workbook links to blocked file types will be disabled by default | Microsoft 365 Message Center Archive