Task: Move data between JSON and spreadsheets

n8n workflow:
{"nodes":[{"name":"HTTP Request","type":"n8n-nodes-base.httpRequest","position":[560,700],"parameters":{"url":"https://randomuser.me/api/","options":{}},"typeVersion":2},{"name":"Google Sheets","type":"n8n-nodes-base.googleSheets","position":[960,560],"parameters":{"range":"A:C","options":{"usePathForKeyRow":true},"sheetId":"qwertz","operation":"append","authentication":"oAuth2"},"credentials":{"googleSheetsOAuth2Api":{"id":"2","name":"google_sheets_oauth"}},"typeVersion":1},{"name":"Set","type":"n8n-nodes-base.set","position":[760,700],"parameters":{"values":{"string":[{"name":"name","value":"={{$json[\"results\"][0][\"name\"][\"first\"]}} {{$json[\"results\"][0][\"name\"][\"last\"]}}"},{"name":"country","value":"={{$json[\"results\"][0][\"location\"][\"country\"]}}"}]},"options":{},"keepOnlySet":true},"typeVersion":1},{"name":"Spreadsheet File","type":"n8n-nodes-base.spreadsheetFile","position":[960,840],"parameters":{"options":{"fileName":"users_spreadsheet"},"operation":"toFile","fileFormat":"csv"},"typeVersion":1},{"name":"Spreadsheet File1","type":"n8n-nodes-base.spreadsheetFile","position":[960,1200],"parameters":{"options":{}},"typeVersion":1},{"name":"Write Binary File","type":"n8n-nodes-base.writeBinaryFile","position":[1360,1200],"parameters":{"fileName":"randomusers.json"},"typeVersion":1},{"name":"Move Binary Data1","type":"n8n-nodes-base.moveBinaryData","position":[1160,1200],"parameters":{"mode":"jsonToBinary","options":{}},"typeVersion":1},{"name":"Gmail1","type":"n8n-nodes-base.gmail","position":[1360,1420],"parameters":{"message":"Hello, attached is a JSON file with random user information.","subject":"JSON file with users","additionalFields":{"attachmentsUi":{"attachmentsBinary":[{"property":"data"}]}}},"credentials":{"gmailOAuth2":{"id":"16","name":"gmail"}},"typeVersion":1},{"name":"Google Sheets2","type":"n8n-nodes-base.googleSheets","notes":"Append data to sheet","position":[1760,1420],"parameters":{"range":"A:C","options":{"usePathForKeyRow":true},"sheetId":"qwertz","operation":"append","authentication":"oAuth2"},"credentials":{"googleSheetsOAuth2Api":{"id":"2","name":"google_sheets_oauth"}},"notesInFlow":true,"typeVersion":1},{"name":"Move Binary Data2","type":"n8n-nodes-base.moveBinaryData","position":[1560,1420],"parameters":{"options":{},"sourceKey":"attachment_0"},"typeVersion":1},{"name":"Note","type":"n8n-nodes-base.stickyNote","position":[1200,560],"parameters":{"width":320,"height":80,"content":"## JSON > Google Sheets"},"typeVersion":1},{"name":"Note1","type":"n8n-nodes-base.stickyNote","position":[1200,860],"parameters":{"width":320,"height":80,"content":"## JSON > CSV"},"typeVersion":1},{"name":"Note2","type":"n8n-nodes-base.stickyNote","position":[580,1220],"parameters":{"width":320,"height":80,"content":"## CSV > JSON file"},"typeVersion":1},{"name":"Note3","type":"n8n-nodes-base.stickyNote","position":[980,1460],"parameters":{"width":320,"height":80,"content":"## JSON file > Google Sheets"},"typeVersion":1}],"connections":{"Set":{"main":[[{"node":"Google Sheets","type":"main","index":0},{"node":"Spreadsheet File","type":"main","index":0}]]},"Gmail1":{"main":[[{"node":"Move Binary Data2","type":"main","index":0}]]},"HTTP Request":{"main":[[{"node":"Set","type":"main","index":0}]]},"Spreadsheet File":{"main":[[{"node":"Spreadsheet File1","type":"main","index":0}]]},"Move Binary Data1":{"main":[[{"node":"Write Binary File","type":"main","index":0}]]},"Move Binary Data2":{"main":[[{"node":"Google Sheets2","type":"main","index":0}]]},"Spreadsheet File1":{"main":[[{"node":"Move Binary Data1","type":"main","index":0}]]},"Write Binary File":{"main":[[{"node":"Gmail1","type":"main","index":0}]]}}}