FNN file format description
Many people share .fnn files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .fnn file can be edited, converted or printed with. On this page, we try to provide assistance for handling .fnn files.
1 filename extension(s) found in our database.
.fnn - MS-DOS Screen Text Font
The FNN font files are related to MS-DOS. FNN file is a MS-DOS Screen Text Font. MS-DOS is a non-graphical command line operating system created for IBM compatible computers. The MS-DOS seems to be no longer supported.
- Font files
- - / -
- MS-DOS Screen Text Font related extensions:
Naturally, other applications may also use the .fnn file extension. Even harmful programs can create .fnn files. Be especially cautious with .fnn files coming from an unknown source!
Can't open a .fnn file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Windows can't open this file:
To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.
To avoid this error, you need to set the file association correctly.
- Open Control Panel > Control Panel Home > Default Programs > Set Associations.
- Select a file type in the list and click Change Program.
The .fnn file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
fbn, bnn, fnm, fnb, cnn, nn, fng, fn, dnn
Is it possible that the filename extension is misspelled?
Similar file extensions in our database:
- ArcGIS RO Spatial Index
- Sony-Ericsson Phone Flash Filesystem
- FLUKA Binary Data
- GCL Cross Referencing Data
- CNVkit Data
- First Publisher Font
DataTypes.net currently supports the following operating systems:
Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android
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