Example of Binary Data no AJAX MVC

reader.cs

        // Upload and transfer data to API/DB
        [HttpPost]
        public async Task<ActionResult> UploadFiles()
        {
            // Checking no of files injected in Request object  
            if (Request.Files.Count > 0)
            {
                try
                {
                    //  Get all files from Request object  
                    HttpFileCollectionBase files = Request.Files;
                    clientSchemaName = Request.Form.Get("selectedFuelImportSchema");

                    for (int i = 0; i < files.Count; i++)
                    { 

                        HttpPostedFileBase file = files[i];
                        string fname;

                        // Checking for Internet Explorer  
                        if (Request.Browser.Browser.ToUpper() == "IE" || Request.Browser.Browser.ToUpper() == "INTERNETEXPLORER")
                        {
                            string[] testfiles = file.FileName.Split(new char[] { '\\' });
                            fname = testfiles[testfiles.Length - 1];
                        }
                        else
                        {
                            fname = file.FileName;
                        }

                        // Convert the file to a byte array for transport
                        BinaryReader b = new BinaryReader(file.InputStream);
                        FuelImportSendData fuelImportDataToApi = new FuelImportSendData();

                        // Populate the viewmodel with the file contents and schema name and ship it
                        byte[] binData = b.ReadBytes(file.ContentLength);

                        // Get the fuel import schemas
                        List<FuelImportSchemaModel> fuelImportSchemaList = new List<FuelImportSchemaModel>();
                        IEnumerable<object> fuelImportSchemas = await CoreService.LoadDataFromApi("FuelImportSchema", CoreService.GetToken());
                        JsonConvert.PopulateObject(JsonConvert.SerializeObject(fuelImportSchemas), fuelImportSchemaList);
                        var result = Json(fuelImportSchemaList);

                        fuelImportDataToApi.File = binData;
                        fuelImportDataToApi.SchemaName = clientSchemaName;

                        SqlReturnModel retModel = new SqlReturnModel();
                        retModel = await _coreService.InsertObject("FuelImport", fuelImportDataToApi, CoreService.GetToken());

                        // Check if there was data that didn't pass and return that data.
                        if (retModel.FuelDataWithErrorJSON.HasValue())
                        {
                            //List<FuelImportParsedModel> parsedData = new List<FuelImportParsedModel>();
                            JsonConvert.PopulateObject(retModel.FuelDataWithErrorJSON, parsedData);
                            return Json(parsedData.Count); //Number of Errors
                        }

                        // Get the complete folder path and store the file inside it.  
                        //fname = Path.Combine(Server.MapPath("~/Uploads/"), fname);
                        //file.SaveAs(fname);
                    }

                    // Returns message that the file successfully uploaded  
                    return Json("File Uploaded Successfully!");
                }
                catch (Exception ex)
                {
                    return Json("Error occurred. Error details: " + ex.Message);
                }
            }
            else
            {
                return Json("No files selected.");
            }
        }