Dahua DH-XVR5104HS-4KL-I3 User Manual page 245

Click the picture that you want to play back.
The picture with registered information is displayed.
Click to play back the recorded video.
Double-click on the playing page to switch between full screen playing and thumbnail
playing.
You can also do the following operations to the recorded files.
To export the database file (.csv) to the external storage device, select files, click Export,

and then select the save path.
To back up the recorded files to the external storage device, select files, click Backup,

select the save path and file type, and then click Start.
Registered information
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User's Manual