The end is nigh for Windows 10 Mobile. We already knew that technical support for the mobile operating system would end on December 10th, 2019 (yep, that's tomorrow). Now, we have an official end-of-life date for the Windows 10 Mobile Office apps, too: January 12th, 2021. From that point onwards, the much-loved software suite -- including Word, Excel, PowerPoint and OneNote -- won't receive any bug fixes, security updates and general technical support. The apps will still work, Microsoft confirmed, but you won't be able to install them on any new devices.