SP2010 upgrade - Test-SPContentDatabase complains about Microsoft.Office.Excel.WebUI.dwp

Test-SPContentDatabase -Name ABCD_Content -WebApplication
http://yoursite

Category : MissingSetupFile
Error : True
UpgradeBlocking : False
Message : File [Features\ExcelServerSite\Microsoft.Office.Excel.WebUI.dwp] is referenced [2] times in the database [ABCD_Content], but exists only under Windows SharePoint Services 3.0 setup folder. Consider upgrading the feature/solution which contains this file to the latest version.
Remedy: One or more setup files are referenced in the database
[ABCD_Content], but are not installed on the current farm. Please install any feature or solution which contains these files


Solution
There was an issue with this Web part and the Test-SPContentDatabase command. You should be able to ignore it and upgrade will work.

It worked for me!

Ref:
http://social.technet.microsoft.com/Forums/en/sharepoint2010setup/thread/539c4086-0bfe-4c87-9b0a-c4d65642340f

SharePoint 2010 -People and Groups All People Link is missing

In SP2010 All People Link is missing. Which is a useful link when you want to see all people who have access to the site or delete the user completely from the site collection, rather than going group by group to delete the user.

So the workwround is click any one group and check the URL
"/_layouts/people.aspx?MembershipGroupId=7"
Change the MembershipGroupId value to 0 "/_layouts/people.aspx?MembershipGroupId=0" and now you should be able to see all the people.