How to Export Data to Excel File in Angular Application

In this tutorial, we will learn how to export data to excel sheet files in Angular 14 apps. To export data to Excel file in Angular application we follow the following steps

• Step 1: Create New Angular App
• Step 2: Install bootstrap and primeng Library
• Step 3: Add Code on App.Module.ts File
• Step 4: Add Code on View File
• Step 5: Add Code On app.Component ts File
• Step 6: Start the Angular App

Step 1: Create New Angular App

First of all, open your terminal and execute the following command on it to install angular app:

ng new my-new-app

Step 2:  Install bootstrap and primeng Library

Then execute the following command on terminal to install bootstrap library and excel export library in the angular app; as follows:

npm install jquery --save
ng add @ng-bootstrap/ng-bootstrap
npm install primeng --save 
npm install primeicons --save  
npm install @angular/cdk --save 
npm i file-saver npm i xlsx 
npm install primeflex --save

Step 3: Add Code on App.Module.ts File

In this step, visit src/app directory and open app.module.ts file. And then add the following lines of into app.module.ts file:

...
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { TableModule } from 'primeng/table';
import { DropdownModule } from 'primeng/dropdown';
import { ButtonModule } from 'primeng/button';
 
@NgModule({
 ...
  imports: [
   ...
    BrowserAnimationsModule,
    TableModule,
    DropdownModule,
    ButtonModule
  ],
  ...

Step 4: Add Code on View File

In this step, create html table with export excel button in angular app. So, visit src/app/ and app.component.html and update the following code into it:

<p-table [value]="sales">
    <ng-template pTemplate="caption">
        <div class="p-d-flex">
            
            <button type="button" pButton pRipple icon="pi pi-file-excel" (click)="exportExcel()" class="p-button-success p-mr-2"></button>
            
        </div>
    </ng-template>
    <ng-template pTemplate="header">
        <tr>
             
            <th pSortableColumn="brand">Brand <p-sortIcon field="brand"></p-sortIcon></th>
            <th>Last Year Sale</th>
            <th>This Year Sale</th>
            <th>Last Year Profit</th>
            <th>This Year Profit</th>
        </tr>
         
    </ng-template>
    <ng-template pTemplate="body" let-sale>
        <tr>
            <td>{{sale.brand}}</td>
            <td>{{sale.lastYearSale}}</td>
            <td>{{sale.thisYearSale}}</td>
            <td>{{sale.lastYearProfit}}</td>
            <td>{{sale.thisYearProfit}}</td>
        </tr>
    </ng-template>
</p-table>

Step 5: Add Code On app.Component ts File

In this step, visit the src/app directory and open app.component.ts. Then add the following code into component.ts file:

...
export class AppComponent {
 ...
  ngOnInit() {
    this.sales = [
      { brand: 'Apple', lastYearSale: '51%', thisYearSale: '40%', lastYearProfit: '$54,406.00', thisYearProfit: '$43,342' },
      { brand: 'Samsung', lastYearSale: '83%', thisYearSale: '96%', lastYearProfit: '$423,132', thisYearProfit: '$312,122' },
      { brand: 'Microsoft', lastYearSale: '38%', thisYearSale: '5%', lastYearProfit: '$12,321', thisYearProfit: '$8,500' },
      { brand: 'Philips', lastYearSale: '49%', thisYearSale: '22%', lastYearProfit: '$745,232', thisYearProfit: '$650,323,' },
      { brand: 'Song', lastYearSale: '17%', thisYearSale: '79%', lastYearProfit: '$643,242', thisYearProfit: '500,332' },
      { brand: 'LG', lastYearSale: '52%', thisYearSale: ' 65%', lastYearProfit: '$421,132', thisYearProfit: '$150,005' },
      { brand: 'Sharp', lastYearSale: '82%', thisYearSale: '12%', lastYearProfit: '$131,211', thisYearProfit: '$100,214' },
      { brand: 'Panasonic', lastYearSale: '44%', thisYearSale: '45%', lastYearProfit: '$66,442', thisYearProfit: '$53,322' },
      { brand: 'HTC', lastYearSale: '90%', thisYearSale: '56%', lastYearProfit: '$765,442', thisYearProfit: '$296,232' },
      { brand: 'Toshiba', lastYearSale: '75%', thisYearSale: '54%', lastYearProfit: '$21,212', thisYearProfit: '$12,533' }
  ];
   
}
 
//excel button click functionality
exportExcel() {
  import("xlsx").then(xlsx => {
      const worksheet = xlsx.utils.json_to_sheet(this.sales); // Sale Data
      const workbook = { Sheets: { 'data': worksheet }, SheetNames: ['data'] };
      const excelBuffer: any = xlsx.write(workbook, { bookType: 'xlsx', type: 'array' });
      this.saveAsExcelFile(excelBuffer, "sales");
  });
}
saveAsExcelFile(buffer: any, fileName: string): void {
  import("file-saver").then(FileSaver => {
    let EXCEL_TYPE =
      "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=UTF-8";
    let EXCEL_EXTENSION = ".xlsx";
    const data: Blob = new Blob([buffer], {
      type: EXCEL_TYPE
    });
    FileSaver.saveAs(
      data,
      fileName + "_export_" + new Date().getTime() + EXCEL_EXTENSION
    );
  });
}
 
}

Step 6: Start the Angular App

In this step, execute the following command on terminal to start angular app:

ng serve

In this tutorial you learned how to export data to an Excel file in an Angular app.

#angular #database #excel #developer #web-development