Support for .FBX and .SKP three-dimensional file formats in Microsoft 365 apps will retire

Microsoft has announced that it will be retiring support for .FBX and .SKP three-dimensional file formats in its 365 apps on March 1, 2025, citing security concerns. After this date, users must convert these files externally before inserting them as 3D models. Existing 3D models that have already been inserted will remain, however, users will no longer be able to insert .FBX or .SKP files. Microsoft explains that the use of these formats requires third-party transcoding applications, which are no longer maintained to their security standards. Other 3D model formats such as OBJ, STL, GLTF, and GLB will continue to be supported. Admin action is not required for this change, as it will happen automatically by the specified date, March 1, 2025. Note that all Filmbox and SketchUp models that have already been inserted in Office documents will persist without issue as they are converted to a shared base format after insertion. Users of Office 365 apps who need to insert .FBX or .SKP files going forward will need to first convert them outside of Microsoft 365.

The announcement message is being sent to organizations using Office 365 apps that have previously supported .FBX and .SKP files. Users are advised to update relevant documentation and let other users know about the change. This message has an ID of MC950892 and the source of this announcement is the M365 Admin.