Microsoft 365 file viewer upgraded – can now preview over 300 file formats

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Microsoft recently announced significant enhancements to the file viewer in Microsoft 365, revolutionizing how users interact with various file types across OneDrive, SharePoint, and Teams. This upgrade eliminates the need to download files or install specific applications to preview files, offering a seamless experience for users accessing non-Office files. In a press statement, Microsoft said that users do not need to download files or install designated applications for corresponding file formats on their devices to conveniently preview files, including PDFs, videos, CAD drawings, Photoshop files, and more.

microsoft 365 file viewer

Enhanced File Viewer Functionality

The updated file viewer now supports over 300 file formats, enabling users to conveniently preview a wide range of content such as PDFs, videos, CAD drawings, Photoshop files, and more directly within Microsoft 365. This advancement simplifies the viewing process. It also enhances productivity by eliminating the hassle of switching between different applications or downloading files for viewing.

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Introduction of Copilot Functionality

In addition to expanding file format support, Microsoft is set to introduce Copilot functionality to the file viewer in May. The company made this announcement in a recent blog post. This innovative feature will empower users to create content summaries for any file within the viewer. Copilot will also enable users to ask questions about the content in files, enhancing collaboration and facilitating a deeper understanding of the information presented.

The introduction of Copilot functionality represents a significant step towards enhancing user interaction with files within Microsoft 365. This feature will not only streamline workflows but also foster a more interactive and engaging experience for users accessing and working with diverse file types.

microsoft 365 file viewer


Overall, Microsoft’s upgrades to the file viewer in Microsoft 365 mark a substantial improvement in user experience and productivity. By increasing file format support, bringing advanced features like Copilot, and allowing basic image editing and file annotation capabilities, Microsoft is tackling the growing needs of modern users who require efficient and versatile tools for handling various types of content seamlessly within the Microsoft 365 ecosystem. This enhancement underscores Microsoft’s commitment to providing cutting-edge solutions that empower users to work smarter, collaborate effectively, and unlock new possibilities in their digital workflows.

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