If you are referring to a bitmap image, it can be opened in Microsoft Paint, Adobe Photoshop, and GIMP. Most any image or photo program should be able to open a bitmap image.
Bitmap Files
You can make a bitmap in paint. When you save your image just choose .bmp as the file extension.
Bitmap image is raster or pixel based image. Bitmap image is made up of pixels, every pixel in grid have its own position and color. Pixels are mapped to the pixel grid, that's why its name is Bitmap.
bmp
A bitmap image doesn't necessarily have a specified height and width. It can be changed by pressing (Ctrl+E), or the long way; Image > Attributes
A bitmap is a series of bits which represents a rasterized graphic image, each pixel being represented as a group of bits.
The Bitmap Brothers was created in 1987.
A bitmap graphic is also known as a raster image.
a bitmap
A bitmap image uses solid color pixels, which can be identified and recolored easily. A lossy compression image consists of shaded colors which cannot be easily exchanged.
It stands for bitmap (image file).