Workflow: construct a n8n workflow for Slack Readbinaryfile Create
Integrations: emailReadImap, emailSend, function, merge, readBinaryFile, slack, spreadsheetFile, switch

{"nodes": [{"name": "Read Harvey's Email", "type": "n8n-nodes-base.emailReadImap", "position": [270, 390], "parameters": {"options": {}}, "credentials": {"imap": "Read Harvey's Mail"}, "typeVersion": 1}, {"name": "Who Is The Email From?", "type": "n8n-nodes-base.switch", "position": [460, 390], "parameters": {"rules": {"rules": [{"value2": "Louis Litt <louis_litt_1970@yahoo.com>"}]}, "value1": "={{$node[\"Read Harvey's Email\"].json[\"from\"]}}", "dataType": "string", "fallbackOutput": 3}, "typeVersion": 1, "alwaysOutputData": false}, {"name": "Read Excuses File", "type": "n8n-nodes-base.readBinaryFile", "position": [670, 230], "parameters": {"filePath": "/home/n8n/Excuse_Generator.xlsx"}, "typeVersion": 1}, {"name": "Retrieve Excuses Spreadsheet Data", "type": "n8n-nodes-base.spreadsheetFile", "position": [860, 230], "parameters": {"options": {}}, "typeVersion": 1}, {"name": "Generate Excuse", "type": "n8n-nodes-base.function", "position": [1040, 230], "parameters": {"functionCode": "var leadinmax = 24;\nvar perpmax = 25;\nvar delaymax = 23;\nvar leadin = Math.floor((Math.random() * leadinmax ) + 1);\nvar perp = Math.floor((Math.random() * perpmax ) + 1);\nvar delay = Math.floor((Math.random() * delaymax) + 1);\n\nvar excuse = items[leadin].json.Leadin + \" \" + items[perp].json.Perpetrator + \" \" + items[delay].json.Delay;\n\nitems = [{json:{}}];\n\nitems[0].json.excuse = excuse;\nreturn items;\n"}, "typeVersion": 1}, {"name": "Merge Excuse and Mail Data", "type": "n8n-nodes-base.merge", "position": [1230, 330], "parameters": {"mode": "mergeByIndex"}, "typeVersion": 1}, {"name": "Send Email", "type": "n8n-nodes-base.emailSend", "position": [1460, 250], "parameters": {"text": "= {{$node[\"Merge Excuse and Mail Data\"].json[\"excuse\"]}}\n\nMaybe next time.\n\nHarvey", "options": {}, "subject": "=RE: {{$node[\"Merge Excuse and Mail Data\"].json[\"subject\"]}}", "toEmail": "={{$node[\"Merge Excuse and Mail Data\"].json[\"from\"]}}", "fromEmail": "={{$node[\"Merge Excuse and Mail Data\"].json[\"to\"]}}"}, "credentials": {"smtp": "Send Harvey's Mail"}, "typeVersion": 1}, {"name": "Slack (Louis)", "type": "n8n-nodes-base.slack", "position": [1470, 410], "parameters": {"text": "=Here is what Louis emailed you:\n```\n{{$node[\"Merge Excuse and Mail Data\"].json[\"textPlain\"]}}\n```\n\nHere is how \"you\" responded:\n> {{$node[\"Merge Excuse and Mail Data\"].json[\"excuse\"]}}\n\n:+1: *You're Welcome!* :smirk:", "channel": "private", "attachments": [], "otherOptions": {"mrkdwn": true}}, "credentials": {"slackApi": "Nathan's Slack API Token"}, "typeVersion": 1}, {"name": "Slack (General)", "type": "n8n-nodes-base.slack", "position": [890, 470], "parameters": {"text": "You've just received an email. You may wish to check it out.", "channel": "private", "attachments": [], "otherOptions": {"mrkdwn": true}}, "credentials": {"slackApi": "Nathan's Slack API Token"}, "typeVersion": 1}], "connections": {"Generate Excuse": {"main": [[{"node": "Merge Excuse and Mail Data", "type": "main", "index": 0}]]}, "Read Excuses File": {"main": [[{"node": "Retrieve Excuses Spreadsheet Data", "type": "main", "index": 0}]]}, "Read Harvey's Email": {"main": [[{"node": "Who Is The Email From?", "type": "main", "index": 0}]]}, "Who Is The Email From?": {"main": [[{"node": "Read Excuses File", "type": "main", "index": 0}, {"node": "Merge Excuse and Mail Data", "type": "main", "index": 1}], [{"node": "Slack (General)", "type": "main", "index": 0}]]}, "Merge Excuse and Mail Data": {"main": [[{"node": "Send Email", "type": "main", "index": 0}, {"node": "Slack (Louis)", "type": "main", "index": 0}]]}, "Retrieve Excuses Spreadsheet Data": {"main": [[{"node": "Generate Excuse", "type": "main", "index": 0}]]}}}