Exclude final row during csv file dump into google sheet - google-apps-script

Question

I am extracting a csv file from my Gmail and dumping it into a Google Sheet using this Google App Script.
But the csv file I am receiving has a 'total' towards the end of it, I would like to load all the data except last row from the csv file i.e., n-1
How do I tweak the below code to such that the code excludes last delimited value
function importfromGmail() {
var sheetName = "Stackoverflow"; // Please set the tab name you want to overwrite the data.
var threads = GmailApp.search("label:Stackoverflow"); // Please set here.
var messages = threads[0].getMessages();
var message = messages[messages.length - 1];
var attachment = message.getAttachments()[0];
var data = [];
Logger.log("ContentType: "+attachment.getContentType())
//Logger.log(Utilities.parseCsv(attachment.getDataAsString(), ","));
data = Utilities.parseCsv(attachment.getDataAsString(), ",");
Logger.log(data.length)
if (data.length > 0) {
var sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName(sheetName);
Logger.log(SpreadsheetApp.getActiveSpreadsheet().getUrl());
sheet.clearContents().clearFormats();
sheet.getRange(1, 1, data.length, data[0].length).setValues(data);
}
}

Answer 1

In your situation, how about modifying your script as follows?
From:
data = Utilities.parseCsv(attachment.getDataAsString(), ",");
To:
data = Utilities.parseCsv(attachment.getDataAsString(), ",");
data.pop();
By pop(), the last element is removed from data.
Reference:
pop()