There is a report called "User details of selected group(s)" that you can run from the Report Generator. You can print or save the results to a csv file.
EPDM 2010 SP2
Hi Tim -
As Mike pointed out, you can use an Enterprise Report or, if you're comfortable with SQL Server Management Studio, you can just run a T-SQL query.
Use EnterprisePDM; --- replace EnterprisePDM with your vault name
DECLARE @group nvarchar(15);
SET @group = 'Engineering' --- replace 'Engineering' with group name or use '%' for all groups
SELECT U.Username, G.Groupname
FROM GroupMembers M INNER JOIN
Groups G ON M.GroupID = G.GroupID INNER JOIN
Users U ON M.UserID = U.UserID
WHERE G.Groupname LIKE @group AND Enabled = 1