Simple implementation of nativetable exporting for Angular Material Tables. SheetJs is employed

AppComponent.ts

import { Component, ViewChild, ElementRef } from '@angular/core';
import * as XLSX from 'xlsx';

export class AppComponent {
  @ViewChild('TABLE', { static: true }) table: ElementRef;
  exportTable() {
    const ws: XLSX.WorkSheet = XLSX.utils.table_to_sheet(this.table.nativeElement);
    const wb: XLSX.WorkBook = XLSX.utils.book_new();
    XLSX.utils.book_append_sheet(wb, ws, 'Sheet1');

    XLSX.writeFile(wb, 'Exported_File.xlsx');
  }
}