Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .fit

0 extension(s) and 1 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .fit file?
  • Which program can create the .fit file?
  • Where can you find a description of the .fit format?
  • What can convert .fit files to a different format?
  • Which MIME-type is associated with the .fit extension?
Flexible Image Transport System Image .fits file icon

Flexible Image Transport System Image

FITS file is a Flexible Image Transport System Image. FITS stands for "Flexible Image Transport System" and is the standard astronomical data format endorsed by both NASA and the IAU. FITS is much more than an image format (such as JPG or GIF) and is primarily designed to store scientific data sets consisting of multi-dimensional arrays (1-D spectra, 2-D images or 3-D data cubes) and 2-dimensional tables containing rows and columns of data.
Category: Graphic files
Application: XnView
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
fit, fts
Related extensions:
Prism Image
FITS Graphics

Other types of files may also use the .fit file extension. If you have helpful information about .fit extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

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The .fit filename extension is often given incorrectly!

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

flt (54), fot (12), fi (8), bit (7), fti (7), fkt (7), cit (6), ift (6), fir (5), fif (5), vit (5), dit (5), tit (4), fig (4), it (3)

Can't open a .fit file?

If you want to open a .fit file on your computer, you just need to have the appropriate program installed. If the .fit association isn't set correctly, you may receive the following error 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 from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012, Windows 7, Windows 8, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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