7-Zip lets you add uncompressed files to an archive. For a file-bundling task, its catalog description lists several choices for the resulting archive rather than one fixed compression setting.
Choose the archive settings
When creating an archive, you can choose its name, format, compression level and compression type. These are the options described in the source; it does not provide measured compression ratios for particular files. This guide therefore does not promise a specific reduction in size.
Use the additional creation options
The description also lists password encryption and splitting an archive into parts. It does not specify a part-size threshold or report a security test of the encryption, so neither is assumed here.
Extract an existing archive
After installation, 7-Zip is available through a file's right-click context menu. For compressed files in supported formats, including 7z, ZIP and RAR, the source describes extraction into the current folder or a separate folder. That extraction list is not a claim that every listed format can also be created.
Check the stated usage conditions
The catalog describes 7-Zip as free and open-source software for personal and professional use. Registration is not required.
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