DataNumen RAR Repair

Repair RAR and SFX files

WinAce

The best compression application for ACE files

WinArchiver

Comprehensive tool to work with compressed files

gzip

Free compressor that has been ported from Linux

BitZipper

Compressor with support for many formats

UPX

Compress your executable files

KuaiZip

A free multiformat compressor

8 Zip Lite

Compressor compatible with several formats

ArcConvert

Transform a file's compression format

Free RAR Extract Frog

Decompress your RAR file free

ZipGenius

All the necessary tools to create, open and administer compressed files

Hamster Free ZIP Archiver

Quickly compress and extract your files

PowerArchiver

One of the most powerful multiformat compressors

WiZ

Free lightweight ZIP compressor

Bandizip

A very easy-to-use compressor

FILEminimizer Office

Reduce the size of your Office files up to 98%

GeoGebra

Software to learn maths at all levels

GeoEnZo

Digital board to teach and learn maths

Derive

Powerful tool for symbolic mathematic calculations

Mathematica

Platform for computational development

PASW

One of the most powerful statistic solutions on the market

Minitab

One of the best statistical calculation programs

MATLAB

Maths software tool for PC

Maple

Solve complex mathematical operations

Statgraphics

Carry out statistical analyses on your data

Microsoft Mathematics

Solve mathematical operations with this free tool

WinPlot

Generate 2D and 3D graphics

Octave

Applied calculus software very similar to MATLAB

IBM SPSS Statistics

Poweful software to collect and analyze statistical data

Mathcad

Software for engineering calculations

MathType

Complete mathematical equation and formula editor