Spreadsheet data import for WordPress

<?php

/*
Plugin Name: My Hack
*/

function past_spreadsheet() {

//get global database object
global $wpdb;

if($_POST["sheet"])
{
	$lines = explode("\n",stripslashes($_POST["sheet"]) );
	foreach($lines as $line)
		{
			$cells = explode("\t",$line);
			//sprintf like function for formatting sql
			$sql = $wpdb->prepare("INSERT INTO my_custom_table col1=%s, col2=%s, col3=%s", $cells[0], $cells[1], $cells[2]);
			$wpdb->query($sql);
		}
}
else
{
?>
Paste Spreadsheet</p>
<p><form method="post" action="roster.php"><textarea name="sheet"></textarea>
<input type="submit" value="Submit" />
</form>
</p>
<?php
}

} // end paste spreadsheet function

function parts_menu() {
add_menu_page('Paste Spreadsheet', 'Paste Spreadsheet', 1, 'paste_spreadsheet', 'paste_spreadsheet', '', 3); //add toplevel menu page
}

?>