Can't upload file Errno::EACCES in PeopleController#

[fauzieuy]

I'm getting the following error while upload file excel,
on windows

Errno::EACCES in PeopleController#upload_and_validate

Permission denied - C:/Sites/excel_test_app/public/excel_uploaded_files/people.xls
Rails.root: C:/Sites/excel_test_app

Application Trace | Framework Trace | Full Trace
app/controllers/people_controller.rb:164:in upload_and_validate' app/middleware/flash_session_cookie_middleware.rb:19:incall'
app/middleware/flash_session_cookie_middleware.rb:19:in `call'
Request

and

Errno::EACCES in PeopleController#parse_save_from_excel

Permission denied - C:/Sites/excel_test_app/public/excel_uploaded_files/people.xls
Rails.root: C:/Sites/excel_test_app

Application Trace | Framework Trace | Full Trace
app/controllers/people_controller.rb:139:in parse_save_from_excel' app/middleware/flash_session_cookie_middleware.rb:19:incall'
app/middleware/flash_session_cookie_middleware.rb:19:in `call'