Script to Copy multiple sheets from an Excel file and convert it to a Google Sheets file

I have an Excel file with 3 tabs (Sheet1, Sheet2, Sheet3) attached to a Gmail message and I would like these to copy to a Google Sheet file with 3 tabs (SheetA, SheetB, SheetC). The problem I am facing is that my script dumps the data from Excel Sheet 1 and repeats it on all 3 of my Google Sheet tabs. How do I adjust my script so I can copy data from all 3 tabs over?

function MyFunction() { var selectedSheets = ["SheetA","SheetB","SheetC"]; // select the sheets you want to run the function for var sheets = SpreadsheetApp.getActive().getSheets(); // get all sheets  var sheet1= SpreadsheetApp.getActiveSpreadsheet().getSheetByName("SheetA");  sheet1.clearContents();  sheet1.clearFormats(); var sheet2= SpreadsheetApp.getActiveSpreadsheet().getSheetByName("SheetB");  sheet2.clearContents();  sheet2.clearFormats();var sheet3= SpreadsheetApp.getActiveSpreadsheet().getSheetByName("SheetC");  sheet3.clearContents();  sheet3.clearFormats();  var thread = GmailApp.search('from:linked.tracker@gmail.com subject:"Email Subject Test"', 0, 1)[0];  var attachment = thread.getMessages()[thread.getMessageCount() - 1].getAttachments();  var xlsxBlob = attachment[0]; //gets the attachment blob  var convertedSpreadsheetId = Drive.Files.insert({mimeType: MimeType.GOOGLE_SHEETS}, xlsxBlob).id; //uploads the attachment to gdrive  var sheet = SpreadsheetApp.openById(convertedSpreadsheetId).getSheets()[0];  //opens the file in the background to access data  var data = sheet.getDataRange().getValues(); //gets the data and stores it under 'data'  sheet1.getRange(1,1,data.length,data[0].length).setValues(data); //like in the CSV function too uploads the data to our gsheet  var sheet = SpreadsheetApp.openById(convertedSpreadsheetId).getSheets()[0];  //opens the file in the background to access data  var data = sheet.getDataRange().getValues(); //gets the data and stores it under 'data'  sheet2.getRange(1,1,data.length,data[0].length).setValues(data); //like in the CSV function too uploads the data to our gsheet  var sheet = SpreadsheetApp.openById(convertedSpreadsheetId).getSheets()[0];  //opens the file in the background to access data  var data = sheet.getDataRange().getValues(); //gets the data and stores it under 'data'  sheet3.getRange(1,1,data.length,data[0].length).setValues(data); //like in the CSV function too uploads the data to our gsheet}