Microsoft Corporation offers a 3D Viewer that allows users to view 3D models in various file formats. The safety of using this software depends on a few factors. Firstly, the source of the 3D models being viewed should be considered. Since the 3D Viewer can open files in different formats, such as .obj, .fbx, and .stl, it's important to ensure that the files are obtained from reliable and trustworthy sources. Opening files from unknown or untrusted sources can pose security risks, as they may contain malicious content that could harm your computer or compromise your data. Additionally, it's crucial to keep the 3D Viewer application itself updated to the latest version. Microsoft regularly releases security updates and patches to address vulnerabilities and ensure the safety of its software. Staying up-to-date with these updates can help mitigate potential risks associated with using the 3D Viewer. It's important to be cautious while using any software, including Microsoft's 3D Viewer, to ensure the safety of your system and data. Overall, when used responsibly and with proper precautions, Microsoft Corporation 3D Viewer can be a safe tool for viewing 3D models.