What is a NWM file?
Developed by Sony, the NWM file format finds its use in the Sony Network’s line of Walkman. It is a static or animated image that came in several Walkman models such as NW-E405, NW-E407, NW- E503, and many more. It belongs at the raster group of image files, and you can transfer them between supporting devices too.
How to Make NWM Files
Exact steps for creating NWM files will vary by program and operating system. Download one of the above listed programs and you should be able to follow typical procedure for opening files or creating files from the File menu. Typically you will select File > Open or File > New and continue through the prompts. Some programs may follow a different procedure for either creation or opening of files.