Information files (.nfo) that are typically downloaded with various torrents packages are specially formatted text files. There is really no need to convert them, but for best reading experience you should use some specialized NFO reader like GetDiz or DAMN NFO Viewer.
Convert Information readme text document to Text file.
We have found 3 software records in our database eligible for .nfo to .text file format conversion.
Microsoft Windows software - convert nfo to text on Windows
A sophisticated source code editor for programmers
Convert from nfo file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned nfo to text. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
One of the many text viewers and editors
An alternative text editor