Workflow: engineer an n8n flow that executes Readbinaryfile Spreadsheetfile Create
Integrations: postgres, readBinaryFile, spreadsheetFile

{"nodes": [{"name": "Read Binary File", "type": "n8n-nodes-base.readBinaryFile", "position": [450, 650], "parameters": {"filePath": "spreadsheet.xls"}, "typeVersion": 1}, {"name": "Spreadsheet File1", "type": "n8n-nodes-base.spreadsheetFile", "position": [600, 650], "parameters": {}, "typeVersion": 1}, {"name": "Insert Rows1", "type": "n8n-nodes-base.postgres", "position": [750, 650], "parameters": {"table": "product", "columns": "name,ean"}, "credentials": {"postgres": "postgres"}, "typeVersion": 1}], "connections": {"Read Binary File": {"main": [[{"node": "Spreadsheet File1", "type": "main", "index": 0}]]}, "Spreadsheet File1": {"main": [[{"node": "Insert Rows1", "type": "main", "index": 0}]]}}}