A device for conversion of formats (f1) of files (F) in a format (f2) for three-dimension (3D) vision, having a receiving unit to receive a plurality of source images (I1i) source in the file (F) in the format (f1), a processing unit having a checking module configured for checking whether the image (I1) is a double right-left channel image, a first processing module configured to represent a left part of the image in a left image (SI1) and a right image (DI1), an interlacing module configured to create an interlaced image (lint) for the image (I1) in which even pixel columns of the interlaced image (lint) are defined as a function of the left image (SI1) and odd pixel columns of the interlaced image (lint) are defined as a function of the right image (DI1), thereby converting the file (F) in the format (f2) for three-dimension (3D) vision.
