Hold your mouse over a suggested match to see the details about the person's information in VSys and the excluded person's information:
Right-click on the person to Edit her or mark this match as:
Every time VSys checks a volunteer against the exclusions file, and every time you make an action to set the exclusion status, VSys logs that event in an "HHS Exclusions check" certification whose contents you cannot edit. You can use this archive as proof that you've checked each volunteer and of your actions in comparing them.