can't open my Cdr file's - Help!

I tried to open  file's that I created recently in X3 and they will not open. when i try to open them they appears as blank page and they show nothing

all of my Cdr files be corrupted . they show their real size (eg 23mb ) but when i open them it show white page. Even the tumbnail pic shows only corel draw pencil and when i want open them on corel or import in it This error message appears :   D:\ 01.cdr" is not importable using the selected filter, or this format is not supported

 

plz give me the suggestion or solution how i recover my file? any help would be most appreciated!