NFO, System Information File (.nfo)
The NFO System file format
Files with the NFO extension can be created by various programs. The most common one is associated with Microsoft's System Information tool which is used for gathering system information on a Windows computer. It incorporates problem diagnosis as well. All information the Windows utility collects is saved in the NFO file.
Technical details of NFO files
NFO files are comparable to README files, however they do not only contain bare text as usual in README files with a TXT extension. Regarded as the press releases of different kinds of warez, NFO files typically contain release information and software installation notes. These are, oftentimes, illustrated with graphics and "art" created using ASCII. These data files can be opened and viewed in NFO viewers or text editors that support the font used in the NFO file.