[HELP] i can't find my nandroid backup files

Hello guys, i need help.. I just nandroid backup my samsung galaxy s3 i9300 using CMW to my internal sd card.

Now i want to copy my nandroid backup files to external sd card.

my nandroid backup files should be in /sdcard/clockworkmod/backup

but when i use file expert i there is no backup folder in my clockworkmod

in /storage/emulated/0/clockworkmod there is only 1 folder named "downoad" and some files but there is no backup files.. Can you guys help me showing the backup file?

thanks