There is no need to export the data.
In Word, go to Tools>Letters and Mailings and choose Mail Merge.
In the task pane choose Labels. Click Next at the bottom of the pane.
Click label size and select the product number for your labels.
Click next at the bottom of the pane.
"Use an existing list" should be selected.
Click Browse. Navigate to the location of your Excel file.
Change "Files of type" to Excel files. Click open.
I prefer to use DDE.
Select your data range.
Click Next at bottom of pane.
Click Address block.
Click Update labels.
Click next at the bottom of the pane.
Hopefully your Excel data is separated into Name, Address, City, State, Postal code.