Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

JavaScript

function getColName(colNumber){
	return findAsciiNumber(colNumber);
}

function findAsciiNumber(colNumber){
let colName=""
	if(colNumber<=26){
  	return getAlphabet(colNumber);
  }else{
  	colName+=findAsciiNumber(Math.floor(colNumber%26));
    colName+=findAsciiNumber(Math.floor(colNumber/26));
  }
  return colName;
}

function getAlphabet(asciiNumber){
	if(asciiNumber==0) asciiNumber=26;
	return String.fromCharCode(64+Number(asciiNumber))
}

console.log(getColName(78))

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JSFiddle - React, Tailwind, and code Playground

JavaScript

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