Conversion of deskthemepack files to jpg file format

You cannot directly convert deskthemepack files to JPEG, meaing conversion or export of Windows 8/10 themes to JPEG format (.jpg, .jpeg). But in case that you are looking for a way to extract the wallpapers from a .deskthemepack file, simply rename these files to CAB and extract their contents. In the DesktopBackground folder you will find what you are looking for.

Open DESKTHEMEPACK file    Open JPG file