FIT file extension. How to open and convert files with FIT file suffix

Files with fits file extension are astronomical images in FITS format. The main difference is an enhanced metadata structure for scientific data.

There is one other file type using
the FIT file extension!

.fit - Garmin Training Center user activity profile

Detailed description

Software that open fit file

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FIT file extension - Flexible Image Transport System

What is fit file? How to open fit files?

File type specification:

Graphics file type

The fit file extension is used for Flexible Image Transport System format, a most commonly used standard format for images used in astronomy. Historically, magnetic tape was the original storage medium for FITS formats.

FITS is a digital file format used to store, transmit, and manipulate scientific and other images, specially in Astronomy. A major feature of the FITS format is that image metadata is stored in a human-readable ASCII header, so that an interested user can examine the headers to investigate a file of unknown provenance.

FITS is also often used to store non-image data, such as spectra, photon lists, data cubes, or even structured data such as multi-table databases. A FITS file may contain several extensions, and each of these may contain a data object. For example, it is possible to store x-ray and infrared exposures in the same file.

The most common suffix for this format however is the FITS file extension, sometimes there can be found this format with FTS file extension as well.

Updated: April 4, 2024

The default software associated to open fit file:

AVIS - FITS Viewer

Company or developer:
MSB Software

Avis is a freeware FITS viewer for Windows 7, Vista, XP, 2000, 98. FITS files are used in scientific applications like astronomy and medical imaging.

Help how to open:

There are also some specialized FITS viewers that can open *.fit files.

Some image viewers such as GIMP, Photoshop, XnView and IrfanView can generally read simple *.fit images, however are not able to interpret more complex files.

How to convert:

Specialized viewers AVIS - FITS Viewer can convert *.fit images to common bitmap files.

Find conversions from fit file:

Find converter to fit file type:

fits to fit

png to fit

tcx to fit

List of software applications associated to the .fit file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open fit file, edit fit file, convert fit file, view fit file, play fit file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting fit files.

Software that open fit file - Flexible Image Transport System

Programs supporting the exension fit on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about AVIS - FITS Viewer for open fit file action.