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Microsoft Word 97-2003 Document - legacy binary format used by older Word versions. Supports rich text formatting, images, tables, and complex layouts. Maximum compatibility with legacy systems and older Microsoft Office versions (Office 97-2007). File sizes typically larger than modern DOCX. Common in corporate archives, legacy document management systems, and environments requiring backwards compatibility. Still widely supported but superseded by DOCX for new documents.

Microsoft Word 2007+ Document - modern XML-based format providing better compression (40-75% smaller than DOC), improved recovery from corruption, and enhanced features. Open XML standard with better data extraction capabilities. Supports all Word features including styles, themes, SmartArt, advanced formatting, and embedded objects. Industry standard for word processing. Native format for Microsoft Word 2007+, compatible with Google Docs, LibreOffice, and all modern office suites. Essential for professional documents, collaborative editing, and modern workflows.

OpenDocument Text - open standard format for word processors developed by OASIS consortium. Native format for LibreOffice Writer and Apache OpenOffice Writer. XML-based structure ensuring long-term accessibility and vendor independence. Supports advanced formatting, styles, images, tables, and all standard word processing features. Excellent for open-source environments, government documents (mandated in many countries), and avoiding vendor lock-in. Free from licensing restrictions and patent concerns.

Rich Text Format - universal document format developed by Microsoft (1987) for cross-platform text exchange. Readable by virtually all word processors (Word, WordPad, LibreOffice, Google Docs, Pages). Supports basic formatting (fonts, colors, styles, tables) without complex features. Larger file sizes than modern formats but maximum compatibility. Perfect for sharing formatted documents across different systems, email attachments ensuring readability, and legacy system compatibility. Reliable intermediate format for document conversion.

Documento de Word habilitado para macros - formato DOCX con macros VBA incrustadas. Soporta automatización, funciones personalizadas y procesamiento avanzado de documentos. Riesgo de seguridad si las macros provienen de fuentes no confiables. Utilizado en entornos empresariales para flujos de trabajo de documentos automatizados. Mismas características que DOCX más programabilidad. Perfecto para informes automatizados, procesamiento de formularios y generación de documentos. Requiere configuraciones de seguridad de macros en Word. Convierte a DOCX para eliminar macros y compartir de manera más segura.

Word 97-2003 Template - legacy template format for Microsoft Word. Contains styles, formatting, and placeholder content for document creation. Binary format compatible with old Word versions. Larger file sizes than DOTX. Common in corporate environments with standardized documents. Perfect for letterheads, forms, and recurring document types. Being replaced by DOTX. Convert to DOTX for modern Word compatibility and smaller file sizes.

Word Template - modern XML-based template format for Microsoft Word 2007+. Contains styles, themes, formatting, and boilerplate content. Smaller file sizes than DOT. Used for standardized documents, letterheads, forms, and corporate templates. Opens as new document preserving template. Perfect for consistent branding and document standardization. Industry standard for Word templates. Compatible with modern Office versions and alternatives.

Plantilla de Word habilitada para macros - plantilla DOTX con macros VBA incrustadas. Combina funcionalidad de plantilla con automatización. Utilizada para generación automatizada de documentos y procesamiento complejo de formularios. Consideraciones de seguridad para plantillas habilitadas para macros. Perfecto para flujos de trabajo empresariales que requieren creación automatizada de documentos. Común en entornos empresariales. Requiere Word habilitado para macros. Elimina macros y convierte a DOTX para una distribución más segura.

AbiWord Document - native format for AbiWord word processor (open-source alternative to Microsoft Word). XML-based lightweight format supporting basic word processing features including formatting, tables, images, and styles. Smaller file sizes than DOC/DOCX. Compatible with AbiWord on Windows, Linux, and Mac. Good RTF compatibility for cross-application usage. Perfect for lightweight word processing in open-source environments. Limited support outside AbiWord. Convert to DOCX or PDF for wider compatibility.

Applix Word Document - legacy format from Applix Words word processor (1990s Unix/Linux). Proprietary format with limited modern support. Historical format from early Unix office suites. Rarely encountered except in legacy system migrations. Convert to modern formats (ODT, DOCX, PDF) for accessibility. Important for recovering documents from old Applix installations. Better alternatives available for all use cases.

DocBook XML - formato de marcado semántico para documentación técnica. Estructura basada en XML que se centra en el contenido sobre la presentación. Ampliamente utilizado en documentación de software, manuales técnicos y publicación. Separa el contenido del formato, permitiendo múltiples formatos de salida (PDF, HTML, EPUB). Perfecto para documentación técnica compleja que requiere control de versiones y múltiples formatos de salida. Estándar en documentación de código abierto. Requiere procesamiento XSLT para una salida legible.

KWord Document - native format for KWord word processor (part of KOffice/Calligra Suite). XML-based format for KDE office applications. Supports frames-based layout for flexible document design. Less common than mainstream formats. Linux-centric format with limited Windows/Mac support. Convert to ODT or DOCX for wider compatibility. Historical format from KDE office suite evolution. Better alternatives available for modern use.

OpenOffice.org 1.0 Writer - legacy OpenDocument format predecessor. XML-based format from OpenOffice.org 1.x era (2002-2005). Replaced by ODT in OpenOffice 2.0. Supported by older OpenOffice and LibreOffice versions. Convert to ODT for modern compatibility. Historical format important for accessing old OpenOffice documents. Modern LibreOffice can open but saving in ODT recommended.

Texto plano - el formato de documento más simple que contiene solo caracteres ASCII o Unicode sin formato. Sin fuentes, colores, imágenes ni información de diseño. Compatibilidad universal en todas las plataformas, editores de texto y sistemas. Tamaños de archivo lo más pequeños posible. Perfecto para notas, código, scripts, registros y cualquier situación que requiera absoluta simplicidad y portabilidad. Formato esencial para programación, archivos de configuración, intercambio de datos y escenarios donde el formato no es necesario. Funciona en cualquier dispositivo, desde mainframes hasta smartphones.

Microsoft Excel 97-2003 Workbook - legacy binary spreadsheet format supporting up to 65,536 rows and 256 columns per sheet. Contains formulas, formatting, charts, and multiple worksheets. Compatible with older Excel versions (Excel 97-2007). File size limited to ~30MB. Common in legacy business systems, old financial databases, and environments requiring Excel 97-2003 compatibility. Being replaced by XLSX but still encountered in corporate archives and legacy data systems.

Microsoft Excel 2007+ Workbook - modern XML-based spreadsheet format with 1,048,576 rows and 16,384 columns per sheet. Provides better compression (75% smaller than XLS), improved recovery from corruption, and enhanced features. Supports all Excel capabilities including formulas, pivot tables, charts, conditional formatting, and macros (in XLSM variant). Industry standard for spreadsheets. Compatible with Google Sheets, LibreOffice Calc, and all modern office suites. Essential for data analysis, financial modeling, and business intelligence.

OpenDocument Spreadsheet - open standard format for spreadsheet applications developed by OASIS. Native format for LibreOffice Calc and Apache OpenOffice Calc. XML-based structure ensuring data accessibility and vendor independence. Supports formulas, charts, multiple sheets, and standard spreadsheet features. Excellent for open-source workflows, government use (mandated by many countries), and avoiding Microsoft Office licensing. Free from proprietary restrictions with long-term document accessibility guarantees.

Valores separados por comas - formato de texto simple para datos tabulares donde cada línea representa una fila y las comas separan las columnas. Formato de intercambio de datos universal legible por todas las aplicaciones de hojas de cálculo, bases de datos y lenguajes de programación. Sin formato, fórmulas ni múltiples hojas: solo datos puros. Tamaños de archivo más pequeños para datos tabulares. Perfecto para importación/exportación de datos, operaciones de bases de datos, análisis de datos con Python/R y compartir conjuntos de datos. Formato esencial para ciencia de datos, aplicaciones web e integración de sistemas. Funciona con Excel, bases de datos y cualquier herramienta de procesamiento de datos.

Microsoft PowerPoint 97-2003 Presentation - legacy binary format for slide presentations. Supports slides, animations, transitions, embedded media, and speaker notes. Compatible with older PowerPoint versions (PowerPoint 97-2007). File sizes larger than modern PPTX. Common in legacy presentation archives, older corporate training materials, and environments requiring backwards compatibility. Still playable but superseded by PPTX for new presentations. Found in archived presentations from pre-2007 era.

Microsoft PowerPoint 2007+ Presentation - modern XML-based format providing better compression (up to 75% smaller than PPT), improved recovery, and enhanced multimedia support. Supports all PowerPoint features including advanced animations, transitions, embedded videos, SmartArt, themes, and master slides. Industry standard for presentations. Native format for PowerPoint 2007+, compatible with Google Slides, LibreOffice Impress, and Keynote. Essential for business presentations, educational slideshows, and professional communication.

OpenDocument Presentation - open standard format for presentation software developed by OASIS consortium. Native format for LibreOffice Impress and Apache OpenOffice Impress. XML-based structure ensuring long-term accessibility. Supports slides, animations, transitions, multimedia, and standard presentation features. Excellent for open-source environments, government presentations, and avoiding vendor lock-in. Free from licensing restrictions. Compatible with PowerPoint through conversion but best used within open-source office suites.

Portable Document Format - universal document format developed by Adobe maintaining exact visual appearance across all platforms and devices. Preserves fonts, images, layouts, and formatting precisely. Industry standard for document distribution, official documents, forms, archival, and printing. Not designed for editing (though modern tools allow limited editing). Supports encryption, digital signatures, forms, annotations, and accessibility features. Essential for contracts, invoices, reports, e-books, and any document requiring consistent appearance. Most widely supported document format globally.

Documento DjVu - formato especializado para documentos escaneados, libros y manuscritos. Compresión superior para imágenes escaneadas bitonales y en color. Más pequeño que PDF para contenido escaneado (3-10x). Soporta capa de texto OCR, anotaciones y marcadores. Perfecto para bibliotecas digitales, trabajos científicos, documentos históricos y libros escaneados. Se requieren visores especializados (DjVuLibre, complementos de navegador). Excelente para archivar documentos en papel digitalmente. Convierte a PDF para una mayor accesibilidad.

XML Paper Specification - Microsoft's document format similar to PDF. Fixed-layout format preserving exact document appearance. Native support in Windows Vista+. Supports vector graphics, fonts embedding, and digital signatures. Alternative to PDF in Windows environments. Limited support outside Windows ecosystem. Perfect for Windows-only document distribution. Convert to PDF for universal compatibility across all platforms.

Open XML Paper Specification - standardized version of XPS as ECMA standard. Same features as XPS with formal specification. Better cross-platform support than original XPS. Fixed-layout document format with vector graphics support. Used in some Windows applications and printers. Limited adoption compared to PDF. Convert to PDF for maximum compatibility. Mainly relevant in Windows printing workflows.

Markdown - lenguaje de marcado ligero que utiliza sintaxis de formato de texto plano para crear documentos formateados. Símbolos simples (* para cursiva, ** para negrita, # para encabezados) se convierten a HTML. Legible para humanos en texto plano. Perfecto para archivos README, documentación, blogs, toma de notas y redacción técnica. Popular entre desarrolladores, redactores técnicos y creadores de contenido. Soporta encabezados, listas, enlaces, imágenes, bloques de código y formato básico. Extremadamente portátil y a prueba de futuro. Base de muchos generadores de sitios estáticos y sistemas de documentación.

Lenguaje de marcado de hipertexto - lenguaje de marcado estándar para páginas web que contiene texto, imágenes, enlaces y multimedia. Legible en cualquier navegador web sin software especial. Soporta estilo (CSS), interactividad (JavaScript) y embebido de medios enriquecidos. Estándar web universal desde 1991. Perfecto para publicación web, documentación en línea, boletines informativos por correo electrónico y contenido accesible. Extremadamente portátil con soporte garantizado a largo plazo. Puede ser convertido de documentos para distribución web o archivado para visualización sin conexión.

Electronic Publication - open standard e-book format based on HTML, CSS, and XML. Reflowable text adapts to any screen size. Supports fonts, images, metadata, table of contents, and CSS styling. Industry standard for e-books compatible with most e-readers (Kindle via conversion, Kobo, Nook, Apple Books, Google Play Books). Perfect for digital publishing, self-publishing, and distributing long-form content. EPUB 3 adds multimedia and interactivity. Essential format for authors, publishers, and digital libraries.