What is decompression? When do I need to unzip it?

Decompression is to decompress the compressed file, why are the most popular files on the Internet in compressed format! It's very simple, because the compressed file is small and easy to spread, there are many compressed file formats such as zip, rar, etc., and there are many compressed objects, such as ** files, audio files, text files and program installation packages. As for when you need to unzip a file, it's a suffix for a compression format when you can't open it properly.

Of course, some compressed files can be read by specific programs! For example, *** is actually a lossy audio compression file format, but some software such as Qianqian Jingting can read it, including some hardware! For the **file you said, if there is only one source compressed file, you can **go down and unzip it**.

However, some movie files are distributed online in the form of multiple small compressed files! So a movie like this has to be all ** down to be able to decompress smoothly, otherwise it can't be decompressed successfully. In fact, there are only a few compression formats under Windows, but Linux is not the same, such as what.

Compression is to put multiple files into the compressed package, which can be unzipped when needed, and you can also set a password.

To unzip is to open the compressed file. It's like tying things up in reality, and now you just untie the rope.

You have to see what format your ** thing is, and generally the compressed file suffix is. raror. zip,You only need to double-click to open it,Generally, the computer has been installed with decompression and compression software such as this software。

Just open it with Storm Video.

Hope mine works for you!

Compression and decompression correspond to each other.

Compression: As the name suggests, of course, it is to compress files to a smaller size, and later to compress some files into a package. It has the advantages of easy portability and small space occupation.

Decompression: The reverse operation of the compression process. Separate the file from the archive for easy viewing.

The purpose of decompressing a file is to restore a document, file, and various other things that have been compressed by software to the way they were before compression. The data in the unextracted package cannot be used. After the decompression is completed, a new file will appear in the directory where the compressed file is located, and this file is the unzipped file, but it may not be a single file, but something composed of multiple files.

1. Open it directly is instant decompression. In fact, it is to decompress it and save it to a temporary folder on the computer or something.,This decompressed file is deleted after it's used up.。

2. Decompression is to copy a non-compressed file out, and then it can be stored on the computer, and the decompressed file will not be automatically deleted.

The basic principle of compressing a file is to find the duplicate bytes in the file, and establish a "dictionary" file of the same byte, and use a **, for example, there is a few places in the file with the same word "People's Republic of China" with a ** and write it into the "dictionary" file, so that the purpose of shrinking the file can be achieved.

What the compressed package does:

1. Save disk space;

2. You can compress multiple files into a compressed package, which is more useful when sending emails, because multiple files attached to emails usually have to be uploaded one by one, and multiple files can be uploaded once after compressing them into a compressed package;

3. You can decompress a large file into multiple small compressed packages, this function plays a greater role in file copying, for example, you now have a 300M file that needs to be copied to other computers, and your USB disk is only 256M, then you can use compression software to divide the file into two 150M compressed packages and then copy them separately;

4. In addition, some software such as winrar can realize the compression and confidentiality protection of the file, that is, add the decompression password when forming the compressed package, so that the generated compressed package cannot be opened by others without the password, which can play a certain role in file confidentiality.

Compression formats: RAR, ZIP, 7Z, CAB, ARJ, LZH, TAR, GZ, ACE, UUE, BZ2, JAR, ISO, and MPQ.

Compression software: Winrar, HaoZip, 360 compression, WinZip, 7-Zip, WinMount, Peazip, UHARC, FreeArc.

Among them, WinRar and WinZip are paid software, WinMount, Haozip compression, Peazip and 7-Zip are free software.

There is no way to decompress it. If the compressed file is set with a password, it is impossible to decompress without a password, you can pay attention to the comments of the compressed package, and the password will be prompted to decompress in general.

Decompression is the reverse process of compression, which is to restore a document, file, and other things that have been compressed by software to the way they were before compression.

The method to extract the file is:

Right-click the icon - extract the file - OK (provided that the relevant decompression software has been installed and associated with the right-click menu), after the decompression is completed, a new file will appear in the directory where the compressed file is located, this file is the file you unzipped, but it may not be a file, it is composed of multiple files.

File compression is a method of reducing the size of a file, and is often used to reduce the storage space and transfer time of the file. File decompression is the process of restoring a compressed file to its original state.

Commonly used file compression and decompression programs include:

WinZip: A commonly used file compression and decompression software on the Windows platform, which can support a variety of slag compression formats, such as ZIP, RAR, etc. Envy.

7-zip: An open-source file compression software that can support a variety of compression formats, including zip, rar, tar, etc.

WinRAR: A commonly used file compression and decompression software on the Windows platform, which can support a variety of compression formats such as RAR and ZIP.

These programs can compress and decompress files through a graphical user interface or command-line operation.