How to Compress a File to a Specific Size

File compression is an important part of digital storage management. Computers and especially mobile devices have limited storage. Being able to compress files to make them smaller is a good way to free up some much-needed storage space. Furthermore, many email applications limit the size of a file that can be added as an attachment. … Read more

How to Protect Folders With Passwords

Both MacOS and Windows 10 Pro, Enterprise, and Education Editions have their own encryption programs that you can use to encrypt and password-protect files and folders on your hard drive. Windows 10 Home Edition does not come with any encryption software, but you can still use third-party software to encrypt and password-protect your files and … Read more

How to Extract a JAR File

JAR (.jar) files are archive files that contain Java class and associated metadata and resources. They are built on the ZIP format. They are typically executed within a Java environment, but they can also be opened using archive programs like WinZIP, WinRAR, and 7-Zip. This minHour teaches you how to extract a JAR file’s contents. … Read more

How to Open DMG Files

This minHour teaches you how to open a DMG file on a Mac. Since DMG files are used predominately to install applications on Macs, you cannot properly open DMG files on Windows computers. Steps Double-click the DMG file. This will cause your Mac to attempt to open it, resulting in a pop-up message that says … Read more

How to Open a Zip File

This minHour teaches you how to open and extract a ZIP folder on your computer, smartphone, or tablet. ZIP folders are used to compress files into smaller versions, making them easier to store and transport. In order to view and use a ZIP folder’s files in the proper format, you’ll need to extract (or “unzip”) … Read more

How to Add JARs to Project Build Paths in Eclipse (Java)

When your Java project requires JAR libraries (Java Archive) to function, you have to configure your project to include the libraries in its build path. Fortunately, Eclipse makes this process simple and easy to remember. The build used here is Eclipse Java – Ganymede 3.4.0. Adding Internal JARs Create a new folder named lib in … Read more

How to Save a File

Saving files is a crucial part of working with documents, images, videos, and any other files on a computer. Saving your work allows you to come back and continue later, share your files with others, and protect your work from errors and program failures. See Step 1 below to learn the best ways to save … Read more

How to Open Jpeg Files

This minHour will teach you how to open JPEG files. Opening a JPEG file is really simple, but the right way to do it does depend on what kind of device you’re using. Don’t worry—we’ll walk you through how to do it step-by-step whether you’re on an Android, iPhone/iPad, Windows computer, or Mac. Check out … Read more