What is the fits format?

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.fits Flexible Image Transport System

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.

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