Excel cell binding events not triggering after reopen of the workbook

Office.onReady((info) => { // Check that we loaded into Excel if (info.host === Office.HostType.Excel)

{ loadBinding(); }});

function loadBinding() {

Excel.run(async (context) => {

// sample code goes here

const cellAddressRange = context.workbook.getSelectedRange();

cellAddressRange.load("address");

await context.sync();

console.log(cellAddressRange.address);

const bindingId = "binding_" + Math.random().toString(36).substr(2, 9);

const binding = context.workbook.bindings.add(cellAddressRange,Excel.BindingType.range,bindingId);

binding.onDataChanged.add(async (eventArgs) => 

{      

try { 

console.log("cell value updated event handler called.");        

const range = eventArgs.binding.getRange();

console.log(range);

range.load("address,values");

await context.sync();

console.log(range.address, range.values[0][0]);

} 

catch (error) 

{ errorHandlerFunction(error);}}); 



await context.sync();  



}).catch(errorHandlerFunction);}

function errorHandlerFunction(error) 

{ 

console.error(error);

}