file can not be opened
 

i realy need help, i have all my work exceland word file
withen one folder, today i tried to open one of them but
it could not be opened, i checked all of them, they were
the same, (can not be opened) i see that the file size is
zero for all of them, and the were modified in the same
time, please help me to restore my files, its realy
important,

please pay attention
Thanks and regrads
Saed Jaber