Hi,
Glad to know you found a work-around.
Using crontab typically involves writing code or scripts and configuring the server settings. If you wanted to use crontab to automate a task in WooCommerce, you would need to write a script that performs the task (such as exporting product data), and then use crontab to schedule when that script should run. This is out of the scope we can provide in the forums as per our support policy: https://woocommerce.com/support-policy/
However, please note that setting up a crontab can be a complex task and should be carried out by someone who is familiar with server management and programming.
If you need further assistance, you might want to hire a vetted expert at WooCommerce Customizations Page.