File Extension FITS

.FITS File

File extension: FITS
File type: File


Notes about the FITS file extension:



To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The FITS file type is primarily associated with 'FITS'. FITS (Flexible Image Transport System) is the data format most widely used within astronomy for transporting, analyzing, and archiving scientific data files. FITS is much more than just another image format (such as JPG or GIF) and is primarily designed to store scientific data sets consisting of multidimensional arrays (images) and 2-dimensional tables organized into rows and columns of information. Often this file will have the extension .FIZ.

Detailed information for file extension FITS:


Primary association: FITS
File classification: Graphic
Related links: FITS Image Viewers and Converters, A Primer on the FITS Data Format, FITS archive at NRAO

Other applications associated with file type FITS:

  • FITS GraphicFlexible Image Transport System - Camera CCD Image Related links: XnView



To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

Technical data

To view technical data on file-extension FITS click this link to expand/hide the additional area.

System Info for File Extension .FITS

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: GraphicsConverterPro.fits, FileType: Flexible Image Transport Systeme, AppName: GraphicsConverter-reg
EXEFile: GraphicsConverter.exe

ProgramID: FitsImage
EXEFile: %ProgramFiles%\Adobe\Adobe Photoshop CS\Photoshop.exe %1

ProgramID: TheGIMP13
EXEFile: C:\GIMP-1.3\bin\gimp-1.3.exe %1

ProgramID: XnView.Image
EXEFile: %ProgramFiles%\XnView\xnview.exe %1

ProgramID: CCDSoft_File
EXEFile: %ProgramFiles%\SOFTWARE BISQUE\CCDSOFT VERSION 5\CCDSOFT.EXE

ProgramID: CCD_Image
EXEFile: %ProgramFiles%\Diffraction Limited\MaxIm DL 3\MaxIm_DL.exe

ProgramID: GIMP-2.0-fit
EXEFile: %ProgramFiles%\Gimp-2.0\bin\gimp-2.6.exe


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