Select MAILINGS -> Start Mail Merge -> Step by Step Mail Merge Winzard.
In Mail Merge select Letters -> Next: Starting document.
Check Use the current document -> Next: Select recipients.
Click Browse and select the path to the Excel file containing the list.
After selecting the Excel file, the Select Table dialog box appears -> select the data table you want to insert (here, select Sheet 1) -> OK.
Check the records you want to retrieve data -> Select OK.
 Place the cursor at the location where you want to insert data -> select More Items
Select the corresponding data field -> Insert
Insert the remaining data fields, respectively
Select Next: Preview your letters have a demo record -> click Next: Complete the merge to complete the data merging.
Select Edit Individual letters -> the dialog box appears to select display all products All or optionally the number of records displayed in From ... To -> OK
Good luck!