Show pagesourceBacklinksCite current pageExport to PDFFold/unfold allBack to top Share via Share via... Twitter LinkedIn Facebook Pinterest Telegram WhatsApp Yammer Reddit TeamsRecent ChangesSend via e-MailPrintPermalink × be exceptionally good at or proficient in an activity or subject. excel.txt Last modified: 2025/04/29 20:28by 127.0.0.1