Convert csv to bmp Online: csv2bmp
You can use Tom's Editor to easily convert images from
.CSV to Microsoft Windows bitmap .BMP.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
CSV are simple text files used mainly to store tables (as in Microsoft Excel). Saving images as CSV means converting to grayscale and storing every pixel in a different cell of a table.
Format created by Microsoft for their Windows and OS/2 operating systems. Images can be compressed or not.