Convert x3f to bmp Online: x3f2bmp
You can use Tom's Editor to easily convert images from
Sigma Camera RAW Picture File .X3F to Microsoft Windows bitmap .BMP.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Sigma Camera RAW Picture File is an image format with extension X3F.
Format created by Microsoft for their Windows and OS/2 operating systems. Images can be compressed or not.