How to change a button text in a different file

Question

I would like to change the text of a button that was declared in a separate class/file. The button shows as nil in the referencing function (which is in a separate file). Please show me any code necessary to change the value of btnCounter to "0" of the IBOUTLET from "FILE TWO". Thank you

/* THIS IS FILE ONE */ 

import UIKit  class CustomCell: UITableViewCell {  

@IBOutlet weak var btnCounter: UIButton!  

override func awakeFromNib() 
{ super.awakeFromNib()     // Initialization code }  

override func setSelected(selected: Bool, animated: Bool)
{  super.setSelected(selected, animated: animated)      // Configure the view for the selected state
} 
} 

/****** THIS IS FILE TWO ******/ 

import UIKit 
import CoreData  
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate

 {
override func viewDidAppear(animated: Bool){
}

override func viewDidLoad()
    {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
 }


func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return self.players.count
  }

 func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
    {

    let cell = self.tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! CustomCell

    cell.btnCounter.titleLabel?.text = (myArray[indexPath.row])


return cell

}


func displayResetAlertMessage(userMessage:String) {

let myAlert = UIAlertController(title: "Alert", message: userMessage, preferredStyle: UIAlertControllerStyle.Alert) 

let destructiveAction = UIAlertAction(title: "Yes, Delete All Data", style: UIAlertActionStyle.Destructive){(ACTION)in print("Delete Button Tapped")


/******** THIS IS WERE I TRY TO REFERENCE THE BUTTONS IN “Custom Cell”  ******/

var newCellClass = CustomCell()

/* THE VAULE OF custCellClass.btnCounter TURNS OUT TO BE “nil” BEFORE AND AFTER THE STATEMENT IS EXECUTED. THIS IS WHERE I NEED HELP TO CHANGE THE VALUE OF THE IBOUTLET IN "FILE ONE" TO btnCounter TO "0" */

custCellClass.btnCounter?.setTitle("0", forState: .Normal) 
}  

let cancelAction = UIAlertAction(title: "No, Just Leave it Alone and Return", style: UIAlertActionStyle.Default, handler: nil)

 myAlert.addAction(destructiveAction)
 myAlert.addAction(cancelAction)
 self.presentViewController(myAlert, animated:true, completion:nil)

}