How to Import Excel into SQL In Angular 5

HTML:

Upload Excel :

UploadExcel(event) {

debugger;

let fileReader = new FileReader();

this.file = event.target.files[0];

var filename = this.file.name;

if (event.target.files && event.target.files.length > 0) {

let file = event.target.files[0];

fileReader.readAsDataURL(file);

fileReader.onload = () => {

this.UploadCodeBlockExcelForm.get('uploadexcel').setValue({

filename: file.name,

filetype: file.type,

value: fileReader.result.slice(0)

})

};

}

onSubmit(filename) {

const formModel = this.UploadCodeBlockExcelForm.value;

//this.loading = true;

// In a real-world app you'd have a http request / service call here like

// this.http.post('apiUrl', formModel)

setTimeout(() => {

console.log(formModel);

alert('done!');

//this.loading = false;

}, 1000);

}