A daily updated filename extension database!

FIT file extension

The table below provides useful information about the .fit file extension. It answers questions such as:

  • What is the .fit file?
  • What program do I need to open a .fit file?
  • How can the .fit file be opened, edited or printed?
  • How can I convert .fit files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 1 alias(es) found in database

✅ Garmin FIT Data

Garmin FIT Data .fit file icon
FIT file is a Garmin FIT Data. FIT (Flexible and Interoperable Data Transfer) is a file format used for GPS tracks and routes.
FIT format description not yet available
Category: GIS files
Application: Garmin Express
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
FIT aliases:
FIT related links:
FIT related extensions:
Zwift Cycling Workouts Data

✅ Flexible Image Transport System Image

Flexible Image Transport System Image .fits file icon
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
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
FITS aliases:
fit, fts
FITS related links:
FITS related extensions:
Prism Image

FITS Graphics

FITS Redistribution Matrix Data

FITS Auxiliary Response Data

Other types of files may also use the .fit file extension.

🔄 .fit converters

The following softwares are capable of converting .fit files to other formats:

XnView, Gimp

For example, using the softwares above, a .fit file can be converted into one of the following formats:

lbm, afl, pxa, jpe, mic, spc, syj, 001, tile, cpt, dxf, cr2, atk, fxd, pax

🚫 The .fit file extension is often given incorrectly!

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

bit, cit, dit, eit, fi, fif, fig, fih, fir, fkt, flt, fot, ft, fti, git

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

General Filter Data
IGOR Pro Formatted Notebook Template File
Microsoft Encarta Database Update
FireOne Fireworks Show Data
EdgeCAM Feature Template
SeeYou Vector Map Data
TeX Format Data
OS/2 Warp Filter Device Driver
VITec Image

🔴 Can't open a .fit 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .fit file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .fit file extension, write to us!

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