How to modify a large number of file extensions at once
When we are working, a large number of files appear to be in incorrect formats, and we need to change all the formats, such as changing JPG to doc, or to other formats. How can we change it all at once? In fact, we only need to create a text Document, put the files that need to be changed and enter a command. Let’s take a look at the specific tutorial.

Method to modify the file suffix at one time
1. Create a new folder and move all the files that need to be changed into it.

2. Find "File Extension" from the "View" menu, click on the small box in front to check the suffix of the file

3. Create a new txt text, and then enter the following characters in it. Note that there is a space in English before the *.

#4. After saving, change the suffix name of this txt to bat.

5. Click "Yes" in the pop-up prompt box

6. Double-click to run the bat file , you can see that the file extensions have been changed to MP4.

The above is the detailed content of How to modify a large number of file extensions at once. For more information, please follow other related articles on the PHP Chinese website!
How to Enable the Group Policy Editor in Windows 11 HomeApr 15, 2025 pm 06:01 PMEnable the Group Policy Editor (gpedit.msc) on Windows 11 Home: A Step-by-Step Guide Many users, especially in shared office environments, rely on the Group Policy Editor (gpedit.msc) for managing multiple user accounts and preventing unauthorized ac
Windows kb5054979 update information Update content listApr 15, 2025 pm 05:36 PMKB5054979 is a cumulative security update released on March 27, 2025, for Windows 11 version 24H2. It targets .NET Framework versions 3.5 and 4.8.1, enhancing security and overall stability. Notably, the update addresses an issue with file and directory operations on UNC shares using System.IO APIs. Two installation methods are provided: one through Windows Settings by checking for updates under Windows Update, and the other via a manual download from the Microsoft Update Catalog.
Creating an Encrypted Backup Drive That Works on Windows, Mac, and LinuxApr 15, 2025 am 06:13 AMProtecting Your Digital Life: Creating Encrypted Backups with VeraCrypt Our digital lives are brimming with irreplaceable memories, crucial documents, and essential work files. The loss of these due to device failure, theft, or ransomware attacks co
How (and Why) to Turn Off Mouse Acceleration on Windows 11Apr 15, 2025 am 06:06 AMImprove mouse accuracy: Disable Windows 11 mouse acceleration function The mouse cursor moves too fast on the screen, even if you only move the mouse a few centimeters? This is what the mouse acceleration function is. This article will guide you on how to disable this feature to better control mouse movement. Is it wise to disable mouse acceleration? There is no direct "Mouse Acceleration" option in Windows systems. Instead, it is the "Enhanced Pointer Precision" setting, which Microsoft sees as a mouse acceleration feature. When this feature is enabled, the mouse's DPI (dots per inch) setting takes effect. It controls the relationship between the physical movement speed of the mouse and the distance the cursor moves on the screen. Move the mouse slowly, Windows will reduce the effective DPI and the cursor moves shorter
GPD Duo Laptop Review: Dual-Screen Productivity For Experienced UsersApr 15, 2025 am 06:05 AMThe GPD Duo: A Powerful Dual-Screen Laptop Hampered by Software Issues Mobile productivity gets a boost with the GPD Duo's innovative dual-screen design. However, significant software shortcomings prevent it from reaching its full potential. Rating
Razer's Remote Play May Be Better Than Steam LinkApr 15, 2025 am 06:04 AMRazer's new remote play app offers a compelling alternative to established services like Steam Link. Integrating seamlessly with Razer Cortex, the app allows users to launch PC games with a single tap. Android users benefit from haptic feedback whe
10 Ways to Customize the Windows 11 Start MenuApr 15, 2025 am 06:02 AMCustomize Your Windows 11 Start Menu: A Comprehensive Guide The Windows 11 Start Menu is your gateway to apps and settings. If the default setup isn't to your liking, personalization options let you tailor it to your needs. This guide explores vari
How to Use Windows 11 as a Bluetooth Audio ReceiverApr 15, 2025 am 03:01 AMTurn your Windows 11 PC into a Bluetooth speaker and enjoy your favorite music from your phone! This guide shows you how to easily connect your iPhone or Android device to your computer for audio playback. Step 1: Pair Your Bluetooth Device First, pa


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

SublimeText3 Chinese version
Chinese version, very easy to use

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

SublimeText3 English version
Recommended: Win version, supports code prompts!

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),







