To find it, go to Tools | Envelopes and Labels (or Tools | Letters and
Mailings | Envelopes and Labels). On the Labels tab, click Options... In the
Label Options dialog, by "Label products," select "Avery A4 and A5 sizes,"
then scroll the "Product number" list to L7163. Select it and click OK. You
can create a single label or an entire sheet from the dialog, or press the
New Document button to get a full sheet. The labels are set up as a table,
so be sure you have table gridlines displayed (Table | Show Gridlines) so
you can see the label boundaries.