CR4 file format description

Many people share .cr4 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cr4 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cr4 files.

2 filename extension(s) found in our database.

.cr1 - CRBasic Source

The CR1 development files are related to LoggerNet. The CR1 file is a CRBasic Source. CRBasic is a BASIC-like programming language used to create programs for the Campbell dataloggers.

Application:

LoggerNet

Category:

Development files

Mime-type:

text/plain

Magic:

- / -

Aliases:

cr2, cr3, cr4, cr5, cr6, cr7, cr8, cr9

CRBasic Source related extensions:

.cr1: CRBasic Source

.ca4 - STABCAL Calculation Data

The CA4 data files are related to STABCAL. The CA4 file is a STABCAL Calculation Data. STABCAL is a program developed for IBM compatible personal computers to calculate various types of thermodynamic stability diagrams. The STABCAL seems to be no longer supported.

Application:

STABCAL

Category:

Data files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

ca1, ca2, ca3, ca5, ca6, ca7, cr4

STABCAL Calculation Data related extensions:

.3a3: STABCAL 3A3 Data
.4b3: STABCAL Data
.4c3: STABCAL 4C3 Data
.ca4: STABCAL Calculation Data
.po1: STABCAL Data
.sa4: STABCAL Data

Naturally, other applications may also use the .cr4 file extension. Even harmful programs can create .cr4 files. Be especially cautious with .cr4 files coming from an unknown source!

Can't open a .cr4 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:

example.cr4

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 .cr4 file extension is often given incorrectly!

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

c4, cd4, cf4, cg4, cr, cre, crr, crt, ct4, dr4, fr4, rc4, sr4

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.c4: Edmics Image
.c4: Clonk 4 Script
.crr: Cgatools CRR File
.crr: SVAL Correction Data
.crt: Certificate File
.cg4: CALS Group 4 Bitmap

Operating systems

DataTypes.net 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.

https://datatypes.net/open-cr4-files

If you have useful information about the .cr4 file format, then write to us!