I am assuming you only wish to view the data in the cells which meet your criteria.
Open the spreadsheet in Excel
Select the Data menu
Select the Filter submenu and click the AutoFilter option
All the fields in the spreadsheet will display a dropdown arrow
In the Sales field dropdown menu click Custom
The Custom AutoFilter dialog box will appear
Select the "is greater than" option from the operator dropdown menu
Select or type the value you wish to use in the criteria box
Click the OK button
The spreadsheet will display only the records you want. You can then copy and paste the results to another sheet if you wish.
Note: to restore the original sheet do the following
Select the Data menu
Select the Filter submenu and click the AutoFilter option removing the check mark
The sheet will restore to the original view