The .nm file extension is used for Space Engine nebula model files. These files define nebula models for the Space Engine space simulation software. The nebula models are used to render gas clouds during space simulations in Space Engine.
Many other file types also use the .nm extension. Over 600 file types have the .nm extension but most are not compatible. Be careful when opening .nm files from unknown sources. The .nm extension may be used by harmful software.
Space Engine and its file format were developed by Vladimir Romanyuk. The nebula model format files are located in the /cache/models/nebulae/ directory of the Space Engine installation.
Our data shows .nm files are most popular in China. Windows 10 users viewing .nm files typically use the Chrome browser. Only Space Engine software can open .nm nebula model files. No other software supports the format.
Microsoft Outlook
Mozilla Thunderbird
Netscape Navigator