Brother QL-810W Ultra-Fast Label Printer with Wireless Networking - Manual (Page 156)

Transferring Templates with P-touch Transfer Express (Windows only)
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2 When there are either multiple or no Transfer Package files (.pdz) within the folder containing
[
PtTrExp.exe ], click [ Browse ].
Select the Transfer Package file you want to transfer, and then click [ Open ].
Click [ Transfer ].