How to paginate validation errors in laravel excel package?

I think, this is about async job. This is pseudo code only for show the path.

Get file -> show user "Ok, in process" -> dispatch process job -> after processing notify user -> attach the processing result (or link to page with results)

You can put report in cache - but if you have really large excels - report in file maybe useful.

//controller action
public function store(UploadExcelRequest $request)
{
   //validation etc
   $file = Storage::put('excel.xls', $request->file);
   //create record about this file, save patch to file
   $excel = UploadedExcel::create(['path' => 'excel.xls']);
   ProcessExcel::dispatch($excel);
   return response()->json($excel, 201);
}

//Job for process
class ProcessExcel implements ShouldQueue
{
  private ProcessExcel $excel;
  public function __construct(ProcessExcel $excel)
    {
       $this->excel = $excel;
    }

    public function handle()
    {
        $file = Storage::get($this->excel->path);
        //process your file, get $errors
        $content = $errors ?? [];
        Storage::put('file_report.json', json_encode($content));
        $this->excel->report = 'file_report.json';
        $this->excel->save();
        Notification::send($this->excel->user, new ExcelProcessedNotification($this->excel));
    }
 }