Canon MF229dw User Manual page 151

5
Specify the location to save the file, the file name, and the file format, and then click [Save].
For a CSV file, specify the separators used in the file.
The Address Book data is exported to the specified location.
Changing Location to Save Address Book Data
1
Open the printer folder.
2
Right-click your fax icon and click [Printing preferences].
3
Click the [Select Destination] tab
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Displaying the Printer Folder
[Edit Address Book].