public HttpResponseMessage GetOrgUnits(int organizationId, bool?exportOrgUnits) { if (!AllowAccess(organizationId)) { return(Forbidden()); } const string filename = "OS2KITOS Organisationsenheder.xlsx"; var stream = new MemoryStream(); using (var file = File.OpenRead(_mapPath + filename)) file.CopyTo(stream); _excelService.ExportOrganizationUnits(stream, organizationId); stream.Seek(0, SeekOrigin.Begin); return(GetResponseMessage(stream, filename)); }