avoiding added data when importing csv file into mysql - php

Question

Okay, I'm having some serious issues here. I'm new to this site, and new to dealing with importing CSV data via PHP, and also I'm newbies in programming.
when i importing csv file into mysql there is some added data on my database filed
here is my script to upload csf file into mysql
<?php
include '../php/koneksi.php';
if(isset($_POST["Import"])){
$filename=$_FILES["file"]["tmp_name"];
if($_FILES["file"]["size"] > 0)
{
$file = fopen($filename, "r");
while (($Data = fgetcsv($file, 1000, ",")) !== FALSE)
{
//It wiil insert a row to our subject table from our csv file`
$sql = "INSERT into raport (`no_induk`, `nama`, `kelas`, `jurusan`,mapel, `semester`, `nilai`, `deskripsi`)
values(
'".trim($Data[0], '"')."',
'".trim($Data[1], '"')."',
'".trim($Data[2], '"')."',
'".trim($Data[3], '"')."',
'".trim($Data[4], '"')."',
'".trim($Data[5], '"')."',
'".trim($Data[6], '"')."',
'".trim($Data[7], '"')."'
)";
//we are using mysql_query function. it returns a resource on true else False on error
$result = mysql_query( $sql);
if(! $result )
{
echo "<script type=\"text/javascript\">
alert(\"Invalid File:Please Upload CSV File.\");
window.location = \"upload.php\"
</script>";
}
}
fclose($file);
//throws a message if data successfully imported to mysql database from excel file
echo "<script type=\"text/javascript\">
alert(\"CSV File has been successfully Imported.\");
window.location = \"upload.php\"
</script>";
//close of connection
mysql_close;
}
}
?>