The task of converting JSON to an Excel CSV file won’t take a long time. We suspect it can take less than a minute if you move fast enough and have the relevant knowledge. From the standard ...

After uploading a JSON file, select the Excel format, like XLSX or XLS, depending on the version of Microsoft Excel installed on your computer. When you are done, click on the Convert button to ...

That shouldn't be a problem, after all, Excel can handle JSON. So, you try to open the file in Excel using its data import tooling, which usually works very well indeed as a basic ETL system.