Convert RAR Files to EMZ in Java

What is RAR file format?

RAR is a file format used for compressing and archiving files. It was developed by Eugene Roshal, a Russian software engineer, and was released in 1993. The RAR format is commonly used for sharing large files due to its high compression efficiency, which can often result in smaller file sizes than other compression methods. This makes it an ideal format for users who need to transfer large files over the internet or other networks.

The main advantage of RAR over other file formats is that it can be used to create multi-volume archives. This means that large files can be split into several smaller files, which can then be combined into a single file when needed. This allows for greater flexibility in storage and transmission, as users can transfer the smaller files more easily and then recombine them later.

RAR files can be password-protected and encrypted for added security. This is especially useful when transferring sensitive data over the internet. When creating a RAR file, users can choose to encrypt it with a password, which will be required to open the file. This makes RAR a popular choice for sharing confidential documents and files.

RAR files are typically identified by the .rar extension, and can be opened using WinRAR, a proprietary file archiving utility. WinRAR is available for Windows, Mac, and Linux operating systems, and supports a variety of compression formats, including RAR, ZIP, and 7Z. It also includes features such as file splitting, password protection, and recovery volumes, which can be used to recover data in case of a file corruption or system crash.

What is EMZ file format?

The EMZ file format is a bitmap image format associated with Microsoft Windows. It is an enhanced version of the Windows Metafile (WMF) format and includes the same vector and raster imagery as WMF files, with the addition of compression and additional image information. EMZ files are often used by Microsoft applications such as Word and PowerPoint to store vector images. EMZ files can be opened using many image viewers, including Microsoft Office and Adobe Illustrator, as well as popular image editing programs such as Adobe Photoshop. As with other image formats, EMZ files support various color depths and file sizes, allowing for relatively small images, as well as high-resolution images with millions of colors. Although EMZ files are generally smaller than WMF, their compression does not necessarily lead to a good quality image. As with any compressed format, the quality of the image depends on the degree of compression used, so it is important to use the appropriate settings when compressing an EMZ file. In general, EMZ files are best used for graphic images that do not need to be modified, such as logos and other types of corporate artwork. They are also suitable for use in presentations where the quality of the image is not critical.