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spreadsheet (19)

This program may be used to break the encryption on Microsoft Excel XP/2002/2003 files which have been encrypted using the RC4 method. These files are encrypted using a 40-bit-long key. It will not work on files encrypted using later versions or versions 8.0 or earlier.

Debt Payoff
DebtPayoff is an application which will calculate how long it will take to pay off a credit card at a given interest rate and payment amount. It will also calculate how much of what is paid will go toward interest.

Foodsoft is online software for a non-profit food coop. It features a product catalog, order cycle management, accounting, and tasks. A food cooperative is a group of people buying food from suppliers of their own choosing; a collective do-it-yourself supermarket. Members order their products online and collect them on a specified day, and all put in a bit of work to make that possible. Foodsoft facilitates the ordering and administration.

GBonds is a savings bond inventory program for GNOME. It can track the current redemption value and performance of both individual bonds and an entire inventory, and print out that inventory (so you can keep a permanent record in a separate location). The program can track savings notes and series E, EE, and I savings bonds, and can use U.S. Treasury Department redemption files without modification.

GnuLedger is a simple income and expense tracker for indepentant contractors and single person service businesses. It includes a chart of account, a general ledger, and an address book.

This package is no longer maintained but the source code still available.

Gnumeric Heckert gnu.small.png
GNUmeric is a GNU spreadsheet application, running under GNOME. It is interoperable with other spreadsheet applications. It has a vast array of features beyond typical spreadsheet functionality, such as support for linear and non-linear solvers, statistical analysis, and telecommunication engineering.

LibreOffice is the power-packed personal productivity suite that gives you six feature-rich applications for all your document production and data processing needs: Writer, Calc, Impress, Draw, Math and Base.

There are also a good and growing number of free software extensions and templates available.

LibreOffice is a fork of, which is now called Apache OpenOffice. Because Apache OpenOffice hosts and recommends using proprietary extensions, we do not recommend using it.

My Knowledge Explorer
my Knowledge Explorer uses the mKR (my Knowledge Representation) language to create, query and update mKB (my Knowledge Base). mKB can be a simple local address book, or an internet KB such as OpenCyc. RDF, OWL, CycL, are translated to mKR. mKR is a useful mixture of English (subject, verb, object, preposition phrase) and the UNIX shell (variables, procedures, control structures).

Oleo Heckert gnu.small.png
Oleo is a spreadsheet program that supports the X Window System and character based terminals, and can output Embedded PostScript renditions of spreadsheets. It has a Motif/LessTif interface, internationalization support, and an autoconf/automake based compilation process. Database access and GUI improvements are being worked on.

OpenChrom is data analysis a tool for gas chromatography and mass spectrometry. Its functionality and algorithms can be extended using a flexible plugin approach. File formats from various vendors are supported.

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