If you're wondering whether you need a 3D viewer for Microsoft, the answer is not necessarily. Microsoft offers a 3D viewer app for Windows 10, which allows you to view 3D models and interact with them in a 3D environment. This can be useful for certain tasks such as viewing 3D models, analyzing designs, and presenting 3D content to others. However, if you don't work with 3D models on a regular basis, you may not need to install a 3D viewer. That being said, having a 3D viewer can enhance your experience with Microsoft software, especially if you work with 3D content frequently. It can provide a more immersive and interactive way to engage with 3D models, whether you're using Microsoft's own 3D creation tools or working with 3D content from other sources. Ultimately, the decision to install a 3D viewer for Microsoft depends on your specific needs and how you use the software. If you frequently work with 3D models, a 3D viewer can be a valuable tool to have in your toolkit. If not, you may be able to get by without it. Regardless, Microsoft's 3D viewer app is available for free in the Windows Store, so you can easily try it out and see if it adds value to your workflow.