Task: Export WordPress posts to Spreadsheet

n8n workflow JSON:
{"id":"1","name":"Wordpress-to-csv","nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[250,300],"parameters":{},"typeVersion":1},{"name":"Wordpress","type":"n8n-nodes-base.wordpress","position":[430,300],"parameters":{"options":{},"operation":"getAll","returnAll":true},"credentials":{"wordpressApi":""},"typeVersion":1},{"name":"Spreadsheet File","type":"n8n-nodes-base.spreadsheetFile","position":[590,300],"parameters":{"options":{},"operation":"toFile","fileFormat":"csv"},"typeVersion":1},{"name":"Write Binary File","type":"n8n-nodes-base.writeBinaryFile","position":[740,300],"parameters":{"fileName":"data.csv"},"typeVersion":1}],"active":false,"settings":{},"connections":{"Wordpress":{"main":[[{"node":"Spreadsheet File","type":"main","index":0}]]},"Spreadsheet File":{"main":[[{"node":"Write Binary File","type":"main","index":0}]]},"On clicking 'execute'":{"main":[[{"node":"Wordpress","type":"main","index":0}]]}}}