Node.js提供了两个内置库来帮助进行文件操作：***fs***用于文件系统操作，***path***用于提取文件名。您可以使用fs移动文件，使用path获取文件名。下面是一个简短的示例，演示如何将文件从Downloads文件夹移动到Projects文件夹。

const fs = require("fs");
const path = require("path");

const oldPath = path.join("..path to the download folder", 
   "excelFile.xlsx");
const newPath = path.join(__dirname, "someFolder", "excelFile.xlsx");

const moveFile = (oldPath, newPath) => {
  /**
   * here we can add a check if the file and the folder exist
   * fs.existsSync(oldPath) - check if the file exists
   * fs.mkdirSync(path.dirname(newPath), { recursive: true }); - check if 
   * the folder exists
   */
  
  // copy the .xlsx file to the new folder
  fs.renameSync(oldPath, newPath);
 };

 const getTheFileName = (oldPath) => {
   return path.split("\\").pop();
 };