Browse free open source C# Office Suites and projects below. Use the toggles on the left to filter open source C# Office Suites by OS, license, language, programming language, and project status.

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  • 1
    The goal for this project is to provide translators to allow for interoperability between applications based on ODF (OpenDocument) 1.1 standards and ECMA Office OpenXML based Office applications.
    Downloads: 202 This Week
    Last Update:
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  • 2
    PDFCreator

    PDFCreator

    Converts every printable document to PDF, JPG, PNG, TIF and more

    PDFCreator creates professional PDFs with just a few clicks and it's free. PDFCreator comes with many professional features to merge documents, send emails, and more. PDFCreator easily creates PDFs from any Windows program. Use it like a printer in Word, Excel, or any other Windows application. A PDF takes less storage space, and is easier to send with email. Make PDF creator part of your the software suite you have installed on your computer for easy PDF creation. PDFCreator also comes with a COM programming interface that allows to integrate PDFCreator in other applications and a server mode to share PDFCreator on a network.
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    Downloads: 782 This Week
    Last Update:
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  • 3
    JExcelApi is a java library which provides the ability to read, write, and modify Microsoft Excel spreadsheets. This project mirrors the files on http://www.jexcelapi.org, which has been known to go down on occasion.
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    Downloads: 77 This Week
    Last Update:
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  • 4

    Pdf Split and Merge with Bookmark Import

    PDF merging with bookmarks and pagination

    PDF Split and Merge tool is implemented using the PdfSharp library and is either GUI or command driven.It is useful for automated document creation.It allows bookmarks from the input pdfs to be imported and flexibly embedded in the destination document. PDF pages can be numbered and annotated with a footer label.
    Downloads: 31 This Week
    Last Update:
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  • 5
    ONLYOFFICE Workspace

    ONLYOFFICE Workspace

    A Comprehensive Alternative to Office 365 for Business

    ONLYOFFICE Workspace is an open-source business platform that addresses collaboration challenges for both small and medium-sized teams and large enterprises. Available in 27 languages, ONLYOFFICE Workspace increases the overall performance of any team no matter how remote the members are located. It provides tools and apps for AI-powered document editing and co-authoring, file management, project and task planning, email management, CRM management and online communication, all available within one platform. ONLYOFFICE Workspace allows for the optimization of your business processes from lead generation to order fulfillment. Combining a versatile set of tools, ONLYOFFICE Workspace helps entities in any field, from retail sales to industrial engineering and banking. The broad access permission settings make the platform an ideal choice for any executive striving for business excellence and. ONLYOFFICE Workspace offers self-hosted deployment and a vast array of security features.
    Downloads: 25 This Week
    Last Update:
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  • 6
    The “Save as DAISY XML” add-in was created through an open source project with Microsoft, Sonata Software Ltd. and the Digital Accessible Information System (DAISY) Consortium and can be downloaded on sourceforge.
    Downloads: 19 This Week
    Last Update:
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  • 7
    STAMP: Subtitling Add-In for PowerPoint

    STAMP: Subtitling Add-In for PowerPoint

    Provides ability to create captions in PowerPoint

    The Subtitling Add-In for Microsoft PowerPoint (STAMP) helps Microsoft PowerPoint 2016, 2013 and 2010 users add closed captions to the video and audio files included in their presentations, which boosts their impact for those with hearing disabilities.
    Downloads: 21 This Week
    Last Update:
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  • 8
    OpenMiracle

    OpenMiracle

    Human way of Accounting

    Miracle I The next stepping stone of open miracle Miracle i. which helps in showing you the graphical representation of the company status. A unique software with unique features in it and also to be the first in market. Miracle irepresents entire openmiracle modules by projecting various graphical representaions with most idealistic view. Financial statements can be easily analyzed using pie-charts,user interface is more flexible now with the help of coloring system and bar-chart rating. An over all statistic view of a company in a single click!! Miracle Skate..! Fed up of data base migration ?!!Try Miracle Skate Miracle Skate helps to migrate data from Tally accounting software to Open Miracle without any loss of data and it helps the customer to enjoy the features of latest business accounting software-Open Miracle.
    Downloads: 10 This Week
    Last Update:
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  • 9
    This project aims at providing a plugin for Microsoft Word 2003 to open OpenOffice XML documents
    Downloads: 5 This Week
    Last Update:
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  • 10
    The main goal of the Office Binary (doc, xls, ppt) Translator to Open XML Project is to create software tools, plus guidance, showing how a document written using the Binary Formats (doc, xls, ppt) can be translated to Office Open XML.
    Downloads: 5 This Week
    Last Update:
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  • 11
    MDictionary - mobile dictionary program
    Simple plugin based dictionary program for Symbian cellular phones.
    Downloads: 2 This Week
    Last Update:
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  • 12
    Cube45's PPT remote

    Cube45's PPT remote

    Mobile remote controller for Microsoft Office's PowerPoint

    /!\ This application is currently incompatible with Office 2016 : Everything works fine except the slide preview on the smartphone, which is pretty annoying for me. /!\ A mobile application (only for android 2.3+ at the moment) that allows you to control a PowerPoint (2007, 2010 or 2013) slideshow via wifi. You can see the current slide on your mobile phone or tablet and simply swipe to change slides or show comments. ---- Please see the wiki section for installing
    Downloads: 3 This Week
    Last Update:
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  • 13
    An alternative to use when writing a Thesis. Thesistant organizes references, generates Bibliographies, has an equation editor, scratch paper, Spell Check, Find/Replace, a customizable interface, allows you to save as a PDF and much much more...
    Downloads: 3 This Week
    Last Update:
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  • 14
    BoolPdf

    BoolPdf

    A lightweight, cross-platform PDF reader.

    A lightweight, cross-platform PDF reader focused on the PDF reading experience.
    Downloads: 5 This Week
    Last Update:
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  • 15
    AODL,a C# .net library for creating / editing documents in the OpenDocument Format ( ODF ). Requires no knowledge about the ODF XML schema itself. AODC, an OpenDocument Converter & Embed OpenOffice as .net Control
    Downloads: 2 This Week
    Last Update:
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  • 16

    ExcelToPdf

    A tiny utility to mass convert Excel files to Pdf

    ExcelToPdf scan recursively through folders and subfolders for Excel files and copy them in PDF format. It retain the original name of the file (only the extension change) and the folders hierarchy. A handy tool, surprisingly rare (at least for free and without having to upload files on remote servers). Future versions will work with various file types. Installation provide both GUI and contextual entry (on folders). Distributed under BSD license. Require a valid Excel 2007 license or above. Require .net 3.5 or above.
    Downloads: 2 This Week
    Last Update:
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  • 17
    КЛАДР-браузер

    КЛАДР-браузер

    КЛАДР-браузер

    Программа для просмотра данных из КЛАДР. 1) Скачиваете официальные базы КЛАДР-а тут https://www.gnivc.ru/technical_support/classifiers_reference/kladr/ 2) Распаковываете полученный архив в любую папку на компьютере (в папке должны оказаться файлы ALTNAMES.DBF, DOMA.DBF, FLAT.DBF, KLADR.DBF, SOCRBASE.DBF, STREET.DBF). 3) Запускаете мою программу и выбираете File->Create, а там указываете папку куда была распакована база данных КЛАДР и её имя (при желании). Запускаете импорт и ждете несколько минут. 4) Если база КЛАДР была удачно импортирована выбирайте File->Open и нужную БД.
    Downloads: 2 This Week
    Last Update:
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  • 18
    The NExcel library allows a .NET application to read Ms Excel files, compatible with Excel 97 and upper. No need to install Ms Office Excel or any third-party libraries. Based on JExcelAPI by Andrew Khan.
    Downloads: 1 This Week
    Last Update:
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  • 19
    Osenpa PDF Tools

    Osenpa PDF Tools

    Local-first PDF tools for Windows.

    Osenpa PDF Tools is a local-first Windows desktop app for common PDF workflows. It supports merging, organizing, splitting, compressing, converting, OCR text export, signing, watermarking, protecting, cleaning, and batch queue management. The app is designed to keep files on the user's device, without accounts or cloud upload for PDF processing.
    Downloads: 2 This Week
    Last Update:
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  • 20

    SplendidCRM Community Edition

    SplendidCRM is like SugarCRM but designed specifically for Windows

    SplendidCRM was specifically designed for users of all versions of Microsoft Windows. The CRM has all the core features expected in a modern CRM including sales automation, email campaigns, product support and calendaring. SplendidCRM was inspired by SugarCRM and tends to follow their database schema to make it easy to migrate between the platforms. We provide 32-bit and 64-bit installers and the app runs on XP, Vista, Windows 7, Windows 8, Windows Server 2003, Windows Server 2008, Windows Server 2012, SQL Server 2005, SQL Server 2008 and SQL Server 2012. For developers, we provide all the C# ASP.NET source code as well as the SQL source code.
    Downloads: 2 This Week
    Last Update:
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  • 21
    Tustena CRM is an Enterprise-Class Customer Relationship Management server written in C# for the .NET platform with many advanced features like Companies/Leads/Contacts Manager, Calendaring, Groupware, Email Marketing, Reporting, Orders, Catalogs, etc.
    Downloads: 1 This Week
    Last Update:
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  • 22
    A C#/.Net library for creating powerful reports in Excel from an Excel template. The template can modified by the costumer (just basic Excel skills are needed) so each costumer can influence the design of his reports (e.g. bills).
    Downloads: 1 This Week
    Last Update:
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  • 23
    Memba Velodoc Outlook Add-in lets users send large files from within Microsoft Outlook 2003 or above using various server platforms including Velodoc XP Edition, Velodoc Enterprise Edition, BITS servers, FTP servers, UNC file shares and Amazon S3.
    Downloads: 1 This Week
    Last Update:
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  • 24

    My Outlook Add-Ins

    A personal Getting-Things-Done extension for MSOutlook and MSOneNote.

    My Outlook Add-Ins consists of a set of useful customisations for MS Outlook 2010. At the moment 4 cool Add-Ins are provided: 1) MyOutlookAddIn: Generates "Waiting for Answere" MS Outlook Tasks for E-Mails marked with a special "Wait-For" MS Outlook Category at the moment of sending the E-Mail. 2) OutlookOneNote: Integrates MS Outlook 2010 and MS OneNote 2010. When closing MS Outlook it looks at all the Tasks and adds a MS OneNote task reference based on the Tasks category. The reference is added to a special MS OneNote "Overview" Page of the corresponding OneNote Section. 3) ProjectManager: Allows creating and removing Projects, thereby creating the folder structure in MS Outlook 2010 and the page structure in MS OneNote 2010. QuoteFix: Enhanced functionality for simple text answers in MS Outlook 2010. Color highlights different levels of conversation. Fixing also some aspects of MS Outlook quotation problems.
    Downloads: 1 This Week
    Last Update:
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  • 25
    A command-line tool to convert between file formats, which are supported by OpenOffice.org (.doc, .xls, .odt, .odg, etc) and PDF. Documents can be append to a PDF and the count of pages returns. Requires the OOo, OOo SDK and .Net Framework.
    Downloads: 1 This Week
    Last Update:
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