can I export whole workbook as a csv which contains multiple tables?

Currently, we don't have a feature to export an entire workbook with multiple tables as a single CSV file. However, you can export individual tables as CSV files. Here's how: 1. Open the table you want to export 2. Click Actions > Export > Download CSV You'll need to repeat this process for each table in your workbook. The export time depends on the size of your dataset. If you need to export multiple tables frequently, you might want to consider exporting them individually and then combining them in a spreadsheet application outside of Clay. If you need further assistance with this process, feel free to ask for more details.

Sources: Download as a CSV [Clay 101] - Clay University Export and Download a File