The few who understand the system, will either be so interested from it's profits or so dependant on it's favors, that there will be no opposition from that class.
 
Rothschild Brothers of London, 1863
 
There is nothing more frightening than active ignorance.
 
Goethe

File Compression

7-Zip

7-Zip is a file archiver with a high compression ratio. The program supports 7z, ZIP, CAB, RAR, ARJ. archives.
http://www.7-zip.org/
http://www.7-zip.org/download.html

ExtractNow

Easy extraction of files from compressed archives.
Supports ZIP, RAR, ACE, JAR, ISO, IMG, IMA, IMZ, BIN, MP3 (MP3 to WAV), LHZ, LHA file formats.
http://www.extractnow.com/
http://www.extractnow.com/extractnow.exe

Supported through Wine on Linux and Macintosh.

macOSX - The Unarchiver

The Unarchiver is the only app you need to open RAR files on a Mac.

The Unarchiver
Latest version: 4.3.0 (20 Apr 2021)
macOS 10.7 or later.

ZipGenius

ZipGenius is free file compression software for Windows. The software supports more than 20 compression formats including .zip, .7z, .rar and so on.
http://www.zipgenius.it
http://www.zipgenius.com
Download
http://www.zipgenius.com/downloads-center/