Convert pcx to fits

What is the difference between .pcx and .fits?

Description: PCX, standing for Paintbrush Bitmap Image, is a raster image format developed by ZSoft Corporation for their PC Paintbrush graphics program. Initially released in the 1980s, PCX was one of the first widely used bitmap image formats on IBM PC compatible computers. The format supports 1-bit monochrome, 4-bit palette, 8-bit palette, and 24-bit true color images, allowing for a wide range of colors and shades.; The Flexible Image Transport System (FITS) file format is a digital file format used primarily in astronomy for storing, transmitting, and analyzing scientific images and data. Developed in the late 1970s, FITS was designed to provide a standard for the interchange of astronomical data, facilitating the sharing and analysis of data among astronomers and researchers worldwide.