alfa-parse.js

const fs = require('fs');
const iconv = require('iconv-lite');

const buffer = fs.readFileSync(process.argv[2]);
const csv = iconv.decode(buffer, 'win1251');
const rows = csv.toString().split('\n');

const regexp = new RegExp('Заработная плата|Аванс', 'ig');
const result = rows.slice(1).reduce((acc, row) => {
  const values = row.split(';');

  if (regexp.test(values[5])) {
    acc.push({
      date: values[3],
      summ: values[6]
    });
  }
  return acc;
}, []);

console.log(result);