Se agregó el módulo para mandar emails masivos

src/app.module.ts

@@ -2,8 +2,13 @@ import { Module } from '@nestjs/common';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { MailModule } from './mail/mail.module';
+import {ExcelModule} from './excel/excel.module'
 @Module({
-  imports: [MailModule],
+  imports: [
+    MailModule,
+    ExcelModule,
+
+  ],
   controllers: [AppController],
   providers: [AppService],
 })