Thanks, Will this work? Could not load a CSV file type. We're looking for any overlap on unique email, unique IP between these Site Times. In this example we would like to publish that User1@testemail with two different IPs were active in same timeframes (bolded transactions). Make sense? And we can, of course, sort by any of these fields prior. We would normally have 10k+ emails and 40K+ transactions like those below. email,User IP,First Site Activity,Last Site Activity User1@testemail.com,717.228.44.170,2021/01/25 09:14:53,2021/01/25 09:25:06 User1@testemail.com,717.228.44.170,2021/01/25 09:25:34,2021/01/25 09:33:49 User1@testemail.com,717.228.44.170,2021/01/25 09:26:21,2021/01/25 09:28:21 User1@testemail.com,717.228.44.170,2021/01/25 13:45:23,2021/01/25 13:52:22 User1@testemail.com,717.228.44.170,2021/01/25 13:58:03,2021/01/25 14:23:13 User1@testemail.com,717.228.44.170,2021/01/25 16:24:45,2021/01/25 17:35:22 User1@testemail.com,555.184.249.118,2021/01/25 17:10:12,2021/01/25 17:22:31 User1@testemail.com,444.90.63.75,2021/01/27 10:34:48,2021/01/27 10:37:41 User1@testemail.com,555.184.249.118,2021/01/27 14:04:31,2021/01/27 14:22:38 User1@testemail.com,555.184.249.118,2021/01/27 14:18:05,2021/01/27 16:35:43 User1@testemail.com,555.184.249.118,2021/01/27 16:17:44,2021/01/27 16:50:49 User1@testemail.com,555.184.249.118,2021/01/27 16:26:23,2021/01/27 16:48:36 User1@testemail.com,555.184.249.118,2021/01/27 16:28:26,2021/01/27 16:45:11 User1@testemail.com,555.184.249.118,2021/01/27 16:30:36,2021/01/27 17:20:35 User1@testemail.com,555.184.249.118,2021/01/28 09:39:57,2021/01/28 10:00:15 User1@testemail.com,555.184.249.118,2021/01/28 09:54:05,2021/01/28 10:13:46 User1@testemail.com,555.184.249.118,2021/01/28 11:35:41,2021/01/28 11:53:43 User1@testemail.com,555.184.249.118,2021/01/28 11:53:50,2021/01/28 11:59:06 User1@testemail.com,555.184.249.118,2021/01/28 12:00:24,2021/01/28 12:02:12 User1@testemail.com,555.184.249.118,2021/02/04 08:30:36,2021/02/04 09:02:10 User1@testemail.com,555.184.249.118,2021/02/04 11:16:49,2021/02/04 11:49:49 User1@testemail.com,555.184.249.118,2021/02/04 11:56:58,2021/02/04 12:48:00 User1@testemail.com,555.184.249.118,2021/02/04 12:30:09,2021/02/04 13:21:55 User1@testemail.com,717.228.44.170,2021/02/05 15:56:35,2021/02/05 16:01:35 User1@testemail.com,717.228.44.170,2021/02/08 08:18:28,2021/02/08 08:20:56 User1@testemail.com,717.228.44.170,2021/02/08 12:57:18,2021/02/08 13:08:34 User1@testemail.com,717.228.44.170,2021/02/08 13:12:08,2021/02/08 14:19:09 User1@testemail.com,717.228.44.170,2021/02/12 14:11:24,2021/02/12 14:31:29 User1@testemail.com,555.184.249.118,2021/02/16 08:40:27,2021/02/16 09:36:19 User2@testemail.com,222.24.204.8,2021/01/20 15:44:40,2021/01/20 16:09:33 User2@testemail.com,222.24.204.8,2021/01/25 08:56:15,2021/01/25 09:23:01 User2@testemail.com,222.24.204.8,2021/01/25 10:10:40,2021/01/25 10:37:18 User2@testemail.com,222.24.204.8,2021/01/25 10:38:50,2021/01/25 10:51:17 User2@testemail.com,666.232.176.10,2021/01/26 09:48:37,2021/01/26 10:52:00 User2@testemail.com,666.232.176.10,2021/01/26 11:48:07,2021/01/26 12:02:41 User2@testemail.com,222.24.204.8,2021/01/26 13:52:19,2021/01/26 14:23:16 User2@testemail.com,222.24.204.8,2021/01/26 14:14:01,2021/01/26 15:38:30 User2@testemail.com,222.24.204.8,2021/01/29 09:11:06,2021/01/29 09:40:21 User2@testemail.com,222.24.204.8,2021/01/29 09:21:02,2021/01/29 09:35:14 User2@testemail.com,222.24.204.8,2021/01/29 09:27:04,2021/01/29 09:57:56 User2@testemail.com,222.24.204.8,2021/01/29 09:45:38,2021/01/29 09:55:14 User2@testemail.com,222.24.204.8,2021/01/29 09:50:21,2021/01/29 10:02:58 User2@testemail.com,222.24.204.8,2021/01/29 09:54:39,2021/01/29 10:04:21 User2@testemail.com,222.24.204.8,2021/01/29 09:59:02,2021/01/29 10:04:37 User2@testemail.com,222.24.204.8,2021/01/29 10:02:56,2021/01/29 10:09:54 User2@testemail.com,222.24.204.8,2021/01/29 10:06:50,2021/01/29 10:31:05 User2@testemail.com,222.24.204.8,2021/01/29 10:16:29,2021/01/29 10:28:12 User2@testemail.com,222.24.204.8,2021/01/29 10:19:51,2021/01/29 10:27:28 User2@testemail.com,222.24.204.8,2021/01/29 13:25:34,2021/01/29 13:45:43 User2@testemail.com,222.24.204.8,2021/01/29 13:45:45,2021/01/29 14:35:22 User2@testemail.com,222.24.204.8,2021/02/03 10:31:35,2021/02/03 10:37:27 User2@testemail.com,222.24.204.8,2021/02/03 10:52:50,2021/02/03 10:54:57 User2@testemail.com,222.24.204.8,2021/02/03 11:32:41,2021/02/03 11:34:16 User2@testemail.com,222.24.204.8,2021/02/03 11:39:17,2021/02/03 11:46:18
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