See your CorelDraw file pages thumbs in your phone support to X4 and higher.
CDR files thumbnails viewer app for android you can view all pages thumbnails from your coreldraw x4 or higher and save in your android phone.

In Android 6.0 or Higher sdcard permission needs be set manually in configuration -> apps and notification -> app permissions -> CDR Pages Preview or touch and hold on in CDR Pages Preview icone -> app information -> permissions