Compressing and decompressing files in Windows can be achieved through the system's own functions. The specific steps are as follows: 1. Compressing files: Right-click on the file or folder → Move to "Send to" → Select "zipped folder" to generate a .zip format compression package and rename it; 2. Decompressing zip files: Right-click the zip file → Select "Extract All" → Set the target path → Click "Extract" to complete the operation; 3. To handle other formats such as .rar or .7z, you need to install third-party tools such as WinRAR or 7-Zip. After installation, the right-click menu will support the corresponding format; 4. Note when compressing: large files take a long time to compress, compressed files and recompression effects are limited, and use third-party tools to try different algorithms to optimize the volume and confirm whether they contain hidden or system files. Mastering the above methods can meet daily needs.

Compressing and decompressing files is very common when using computers in daily life, such as reducing the size of attachments when sending emails, or requiring the extraction of contents after downloading the software. The Windows system itself comes with compression and decompression functions, and basic operations can be completed without additional software installation.

How to compress files in Windows?

It is very simple to compress files in Windows, you can use the "Compressed Folder" function that comes with the system:

• Right-click on the file or folder you want to compress
• Move the mouse to the "Send to" option
• Click "zipped folder"
• The system will automatically generate a .zip format compressed package, and the name is the original file name "Compressed.zip" by default.

If you want to change the name, right-click the newly generated compressed package and select "Rename". This method is suitable for most daily scenarios, such as sending emails, sharing information, etc.

How to unzip a zip file?

After receiving the zip file sent by someone else, you need to unzip it first to see the contents inside. The method is also very simple:

• Right-click on the zip file
• Select "Extract All"
• In the pop-up window, you can choose which location to decompress. By default, it is a folder with the same name in the current directory.
• Just click "Extract"

Sometimes you will find that double-clicking the zip file can be opened directly, and the content is displayed like a folder, but at this time, the files inside cannot be edited, and only if they are actually extracted.

How to deal with other formats? Like .rar or .7z?

The features that come with Windows only support .zip format. If you encounter formats like .rar or .7z, you need to install third-party decompression tools such as WinRAR or 7-Zip . Both software are very commonly used. After installation, the right-click menu will add corresponding decompression options.

After installation, you can still continue to use the system's own zip function without affecting it.

What should you pay attention to when compressing?

Although compression looks simple, some small details are easy to ignore:

• It takes a little time to compress large folders, especially large content such as pictures and videos.
• Files that are already in compressed format (such as .mp3, .jpg) may not become much smaller if compressed.
• If you want the compression package to be smaller, you can try different compression algorithms with third-party tools

In addition, it is best to confirm whether hidden files or system files are included before compression, because sometimes the default settings will not package these.

Basically that's it. After mastering these steps, you can easily deal with daily compression and decompression needs.

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