CONFFILES file format description

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

1 filename extension(s) found in our database.

.conffiles - Debian Package Configuration Files Data

The CONFFILES data files are related to Dpkg. The CONFFILES file is a Debian Package Configuration Files Data. Debian GNU/Linux is a Linux distribution composed of free and open-source software, developed by the community-supported Debian Project.

Data files
- / -
Debian Package Configuration Files Data related extensions:
Debian Package Post-installation Script
Debian Package Post-removal Script
Debian Package Pre-installation Script
Debian Package Pre-removal Script
Debian Package Shared Library Information
Debian Package Extended Shared Library Information Data

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

Can't open a .conffiles 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.

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

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