Create print data with Calc document (.ods)

File > New > Labels

Format *follow use paper

Horizontal pitch: 6.60cm
Vertical pitch: 3.39cm
Width: 6.60cm
Height: 3.39cm
Left margin: 0.60cm
Top margin: 1.29cm
Columns: 3
Rows: 8
Page width: 43.80cm *whatever, fix so after
Page height: 56.00cm *whatever, fix so after

Options

Select: Entire page

Check: Synchronize contents

Press: New Document

Writer appeared

Format > Page…

Format: A4
OK

Insert > Field > More Fields…

Database

Browse…

Select Calc file (.ods)

Close

View > Data Sources

Select Sheet

Place print data cells on first label

Drag cell titles to drop on first label

Edit label layout

Lay the cursor at the end

Insert > Field > More Fields… > Database

Select: Next record

Press Insert *press once

Press Close

Press Synchronize Labels

Tools > Mail Merge > Wizard… if print error.

Print

File > Print…