Fired when the user clicks the Open toolbar button.

Event Data

e.sender kendo.ui.Spreadsheet

The widget instance which fired the event.

e.file Blob|File

The file that is being imported.

e.preventDefault Function

If invoked, the Spreadsheet will not import the file.

e.promise Promise

A promise that will be resolved when the import operation completes.

The progress handler of the promise will be called periodically with the following arguments:

  • sheet - The current sheet. An instance of kendo.spreadsheet.Sheet.
  • progress - A number if the range is from 0 to 1 which indicates the progress of the current import operation.

Example - monitoring the progress of an import operation

<div id="spreadsheet"></div>
        excelImport: function(e) {
            .progress(function(e) {
/* The result can be observed in the DevTools(F12) console of the browser. */
                console.log(kendo.format("{0:P} complete", e.progress));
            .done(function() {
                alert("Export completed!");

    // Click the Open command and select a file to import
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