Open Source Spreadsheet Software

Microsoft recommends several methods for recovering Excel data from corrupt spreadsheets. S2 Recovery Tools for Microsoft Excel makes it easy to follow these recommended routines by just pressing buttons. The application also adds five methods of its own for recovery. Additionally it has its own native previous file version recovery tool which works in any version of Vista, Windows 7 and Windows 8. Another feature of the program is a preloaded search interface for finding temporary, deleted and lost versions of your corrupt file. For completeness sake the program has shortcuts to 2 major commercial solution providers for corrupt Excel files including providing the coupon "S2SERVICES" for using Recoveronix' online corrupt file recovery service for free until Nov 1, 2014, a $39 value. This program was formerly known as Excel Recovery and more recently, S2 Services Excel Recovery.

Corrupt Office 2007 Extractor will extract the text/data from corrupt docx, xlsx, and pptx files where the respective MS Office files error out and refuse to open. In advanced mode the program can fix the zip structure of "Office Open XML" format files, a step which I now recommend despite our dissuasive blurb which comes up when you start that function. Advanced mode also allows recovering images and includes is a basic editor for editing the corrupt XML subfiles. Additionally I recommend trying some of my other programs on Sourceforge which help with corrupt office files using different algorithms than this present program: Savvy DOCX Recovery, S2 Recovery Tools for Word, Corrupt XLSX Salvager, S2 Recovery Tools for Excel and Corrupt PPTX Salvager. Also take a look at these free corrupt Word repair programs: http://wordcorruptdocchecker.codeplex.com/ and https://support.microsoft.com/en-us/kb/2528942 (featuring a Microsoft Mr. Fixit App).

A simple GUI program that attempts to fully recover unopenable corrupt Open Office files or at least salvage the text. The program now offers an Alternatives menu with links to advice, services and software alternatives for recovery, including a shortcut to Recoveronix File Repair Online's corrupt file recovery service. Using the coupon "S2SERVICES" after a demo recovery of an Open Office odt or ods file will allow for a free full recovery until Nov 1, 2013, a $39 value. Also the program now features a zip repair pretreament in both modes. This program was previously known as Open Office Recovery.

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DOCX, XLSX and PPTX files are collections of conventionally zipped mostly XML sub-files. This program first attempts repair any zip based corruption. From there it engages in four different algorithmic attempts at repair or recovery. With the first method using validation, the location of the first XML error is sought. At that point the sub-files are truncated and repaired. The second method works the same way except the XML validation is more lax. With the third, the strict XML validation is returned to and corrupt XML sub-files are truncated and repaired as before however, missing XML sub-files are brought in from blank full healthy docx, xlsx or pptx of the respective correct extension. The fourth method uses SilverCoder's DocToText to salvage text or data after which the file is opened as an old style MS Office 97 - 2003 format file including the naked recovered text or data. See my other projects here on Sourceforge for other ways to recover corrupt MS and Open Office files.

AutoSpreadsheet is a programmable macro tool for .xls format spreadsheets. It is ideal for situations when you have to perform a repetitive series of operations on a spreadsheet with a known layout but with arbitrary data.

This is a simple utility to track the amount of time a PC is used. It can the used to determine 1. whether PCs are being used optimally, e.g. internet cafe's. 2. productivity (similar to punchcards). 3. sleep/wake cycles or bipolar cycles.

Update: It is probably wise to try to do a zip repair step on corrupt xlsx files as a first step before trying to invoke other methods. Microsoft recommends several methods for recovering from Excel corruption. This Excel add-in brings into one toolbar these methods while adding four data recovery methods of its own. For MS methods for recovering from Excel file corruption, see: http://office.microsoft.com/en-us/excel-help/repairing-corrupted-files-in-excel-HA001034656.aspx or here: http://office.microsoft.com/en-us/excel-help/repairing-a-corrupted-workbook-HA010097017.aspx. Requires at least Excel 2003 and Windows XP.

OO-Widgets is a Java Swing project that makes the JTable and other components much easier to use. This library differs from other Swing libraries in that it displays any set of pre-existing objects or JavaBeans.

Text::FixedWidth is a Perl module that provides a simple object-oriented interface to parse and manipulate fixed column-width text files. The module currently exposes three public methods: new, print_all, and select_distinct.

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exportFromXL is a SAS macro for exporting data from Excel into CSV or TXT files using Dynamic Data Exchange. It works on all versions of PC SAS, Excel and Windows -- but notably not on any version of SAS running off of a server.

exportToXL is a SAS macro for exporting data from PC SAS onto custom-formatted Excel spreadsheets using Dynamic Data Exchange. It works on all versions of PC SAS, Excel and Windows -- but notably not on any version of SAS running off of a server.