7-ZIP is an open source compression software with a very high compression ratio. 7ZIP supports a variety of compression formats, of which 7Z formats usually provide higher compression rates. Make sure you choose the 7Z format to compress. So, how does 7zip compress the 1G file to 200M? How to decompress the file? Let me answer it for you today.

1. How to compress 1G files to 200M

1. After downloading and installing 7zip software

2. Find the 1G file to be compressed, right -click to select 7ZIP and "Add to the compressed package".

3. 7-ZIP provides a variety of compression algorithms, of which the LZMA algorithm has a high compression ratio and a better compression speed. You can choose in a 7-zip compressed dialog box.

4. You need to choose a higher compression level, such as level 6 or 7.

5. Click the "OK" button to start file compression.

6. Completion of compression

2. How to decompress the file

First step

Open the 7-ZIP software, select the compressed package that needs to be decompressed, and then click the [extraction] option in the menu. 7-zip [extraction] means decompression.

Step 2

If you select "Unzip to the specified folder", the storage path of the file after decompression, double -click [OK] to start the decompression file.

Step 3

The decompression is completed, and the compressed file can be found in the output folder.

The decompression of the compression packet is the same as the decompression method of the ordinary compression file, but only the first compressed package needs to be decompressed, and other compressed packets will automatically decompress.

Support format:

Compression / decompression: 7Z, XZ, BZIP2, GZIP, TAR, ZIP and WIM

仅解压缩：AR、ARJ、CAB、CHM、CPIO、CramFS、DMG、EXT、FAT、GPT、HFS、IHEX、ISO、LZH、LZMA、MBR、MSI、NSIS、NTFS、QCOW2、RAR、RPM、SquashFS、 UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z

The above is compiled by the editor of Hua Jun for youHow to compress 1G files to 200M? How to decompress the fileRaiders, I hope to help you