CNA file format description

Many people share .cna files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cna file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cna files.

1 filename extension(s) found in our database.

.cna - Catena Project

The CNA project files are related to Catena. The CNA file is a Catena Project. The Catena seems to be no longer supported.

Project files
- / -
Catena Project related extensions:
JoomLeague Project
Borland Developer Studio Project
TMPGEnc Video Mastering Works 5 Project
XProtector Project
ScreenFlow Project
STOIK MorphMan Project

Naturally, other applications may also use the .cna file extension. Even harmful programs can create .cna files. Be especially cautious with .cna files coming from an unknown source!

Can't open a .cna 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.

The .cna file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

ca, can, cba, cga, cha, cma, cn, cnw, cnx, dna, fna, na, nca, sna, vna

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

ChessBase Annotations
DSC Crossover Network Tuning Data
Core Animation Markup Language Data
DATAIR FlexPlus Data
Applix TM1 Database
Switch Nintendo Content Archive

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .cna file format, then write to us! >> CNA file