Inserts worksheets from another workbook into the current workbook.

Insert external worksheets (1).EXCEL.yaml

name: Insert external worksheets (1)
description: Inserts worksheets from another workbook into the current workbook.
host: EXCEL
api_set: {}
script:
  content: |
    $("#file").change(() => tryCatch(insertSheets));
    $("#go").click(() => $("#file").click());

    async function insertSheets() {
      const button = <HTMLButtonElement>document.getElementById("go");
      const myFile = <HTMLInputElement>document.getElementById("file");
      const reader = new FileReader();

      reader.onload = (event) => {
        Excel.run((context) => {
          // strip off the metadata before the base64-encoded string
          const startIndex = reader.result.toString().indexOf("base64,");
          const workbookContents = reader.result.toString().substr(startIndex + 7);

          const sheets = context.workbook.worksheets;
          sheets.addFromBase64(
            workbookContents,
            null, // get all the worksheets
            Excel.WorksheetPositionType.end // insert them after the current workbook's worksheets
          );
          return context.sync();
        });
      };

      // read in the file as a data URL so we can parse the base64-encoded string
      reader.readAsDataURL(myFile.files[0]);
    }

    /** Default helper for invoking an action and handling errors. */
    async function tryCatch(callback) {
      try {
        await callback();
      } catch (error) {
        // Note: In a production add-in, you'd want to notify the user through your add-in's UI.
        console.error(error);
      }
    }
  language: typescript
template:
  content: "<section class=\"ms-font-m\">\n\t<p>This sample shows how to copy the worksheets from an existing workbook into the current workbook.</p>\n</section>\n\n<section class=\"samples ms-font-m\">\n\t<h3>Try it out</h3>\n\t<p>Select an Excel workbook to copy its worksheets into the current workbook.</p>\n\t<form>\n\t\t<input type=\"file\" id=\"file\" />\n    </form>\n\t\t<button id=go>Go</button>\n</section>"
  language: html
style:
  content: |-
    section.samples {
        margin-top: 20px;
    }

    section.samples .ms-Button, section.setup .ms-Button {
        display: block;
        margin-bottom: 5px;
        margin-left: 20px;
        min-width: 80px;
    }
  language: css
libraries: |
  https://appsforoffice.microsoft.com/lib/beta/hosted/office.js
  @types/office-js-preview

  [email protected]/dist/css/fabric.min.css
  [email protected]/dist/css/fabric.components.min.css

  [email protected]/client/core.min.js
  @types/core-js

  [email protected]
  @types/[email protected]