Microsoft today released a new Insider Fast build of Office for Windows desktop. This Version 1904 (build 11514.20004) comes with redesigned product icons for Word, Excel, PowerPoint and Outlook. The icons has been redesigned to reflect the simple, powerful, and intelligent Office experience. For now, only product icons have been updated. The core file type icons (e.g., icons for .docx, ,xlsx, .pptx files) will be updated when it becomes generally available.
In addition to the updated icons, Microsoft Word gets a new feature. You can now simultaneously view and edit .docm files that are stored on OneDrive.