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. CNA file is a Catena Project. The Catena seems to be no longer supported.
- Project files
- - / -
- Catena Project related extensions:
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.
- Open Control Panel > Control Panel Home > Default Programs > Set Associations.
- Select a file type in the list and click Change Program.
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:
cnx, cma, cga, cba, ca, vna, nca, cnq, can, sna, dna, cnw, cn, cha
Is it possible that the filename extension is misspelled?
Similar file extensions in our database:
- CryENGINE Geometry Animation
- IBM Rational XDE Component Instance File
- ACE Compressed Comic Book
- Coach Activity File
- DB/TextWorks SQL Textbase Definition
- ChessBase Annotations
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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