Hi Avinav.

It depends which table type you tried on our Demo Sandbox.

There are some table types that are edible, such as Manual Tables,  and SQL Query based tables,

but other table types are not editable, such as tables linked with source data like CSV/Excel/Google Sheets, and others.

Please check more details here on how to make editable tables in our plugin.

I also recorded a short Video to show you table ID 1 from our Demo Sandbox, this is a dummy SQL Table that can be editable, so you can check through our existing tables there,

or you can make a new Manual Table from scratch,

or if you have some data on a Google Sheet, CSV or Excel, you can use this to import data into a new Manual Table;

and you can also update existing Manual Tables from source data, too.

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If you meant to use our Excel-Like / Spreadsheet Editor,

that feature is only available for Manual Tables and SQL Tables.

Here is my Short Video of that, on our Table ID 1 from the Demo Sandbox.

And i just wanted to point out that you can try wpDataTables before purchasing

 on our sandbox Demo sites ( you can find links for the main plugin Demo,  

as well as add-on Demos, in my signature),

and there is a 15-day money-back guarantee period, 

so if you purchase the plugin, you can safely fully test it out, and if it doesn't fit your needs you can request and receive a refund in that period. ( same goes for all plugins and add-ons)

Let me know if you have any additional questions.