Hi Babanpreet,
Currently only a specific range can be made read only by disabling it through the enable method (.enable(false)) as demonstrated in the
API documentation.
Such option currently is not implemented for rows/columns/sheets so disabling the whole sheet would require calling the method for a range that covers the whole row, column or sheet respectively, for instance:
We would suggest logging a feature request in our Feedback Portal for the addition of a configuration option/method, similar to that of the Range object, for the Sheet object.
Regards,
Ivan Danchev
Progress Telerik