Awesome GitHub RepositoriesSpreadsheet Generators

Polars is a high-performance columnar data processing library designed for efficient analytical workflows. It functions as a structured data library that organizes information into typed columns, utilizing the Apache Arrow memory format to enable zero-copy data sharing and cache-friendly, vectorized operations. The engine is built to handle large-scale tabular datasets, providing both local and distributed analytical runtimes that scale from single-machine environments to multi-node clusters. The project distinguishes itself through a sophisticated lazy query engine that constructs abstract e

EasyExcel is a Java processing library designed for reading and writing XLS, XLSX, and CSV files. It functions as a memory-efficient spreadsheet parser, an object-relational mapper that binds spreadsheet columns to Java class fields, and a stream-based exporter for handling high-volume data. The library distinguishes itself through a streaming model that processes large files row-by-row via listeners to prevent heap memory overflow. It also operates as a template engine, allowing the population of predefined spreadsheet files with dynamic data while preserving original layouts and styles. Br

React-admin is a framework for building data-driven administrative interfaces that connect to REST or GraphQL backends. It provides a comprehensive suite of tools for managing the full lifecycle of administrative applications, including resource-oriented routing, declarative form scaffolding, and context-driven state management. By utilizing a modular adapter-based architecture, the framework abstracts backend communication, allowing developers to build consistent CRUD interfaces that handle data fetching, authentication, and synchronization automatically. The project distinguishes itself thr

This project is a comprehensive educational guide and framework for building web scrapers using Python. It provides a course-based approach to data extraction, combining a Python crawler framework with tutorials on web reverse engineering and network traffic analysis. The project distinguishes itself by covering advanced extraction challenges, including the decryption of obfuscated JavaScript and the bypass of anti-scraping measures. It specifically addresses mobile application scraping through the simulation of user interactions and the interception of network traffic. The capability surfac

Excelize is a Go library designed for reading, writing, and modifying Microsoft Excel files in XML-based formats. It functions as a spreadsheet file parser and generator that enables the programmatic extraction and modification of data. The library includes a streaming spreadsheet processor to handle massive datasets incrementally, preventing system memory exhaustion during large-scale read and write operations. It also provides a chart generator to convert worksheet values or external data sources into visual representations within the spreadsheet. Beyond core file processing, the project c

Excelize is a library for reading and writing spreadsheet files in the Office Open XML format. It provides a comprehensive suite of tools for programmatically creating, modifying, and analyzing workbooks, worksheets, and cell data, ensuring compatibility across various office software suites through structured XML serialization. The library distinguishes itself with a built-in formula calculation engine that evaluates complex mathematical and logical expressions directly against workbook data. It also features a memory-mapped streaming architecture, which allows for the efficient processing o

ExcelJS is a Node.js spreadsheet engine and manipulation library used for reading, writing, and modifying XLSX and CSV files. It functions as a formatting tool and asynchronous streaming parser for generating complex workbooks containing formulas, rich text, and custom styles. The library is distinguished by its ability to process large datasets using asynchronous data streaming and incremental processing, which minimizes memory usage during data extraction and file generation. Its capability surface covers comprehensive data management, including structured tables, named ranges, and cell da

PhpSpreadsheet is a PHP library used for reading and writing spreadsheet files across various formats. It functions as a spreadsheet file generator and an Excel file parser, allowing for the programmatic creation and manipulation of documents compatible with software such as Microsoft Excel and LibreOffice Calc. The library provides capabilities for programmatic spreadsheet generation and data extraction, enabling the conversion of data from spreadsheet files into programmable PHP formats. It also facilitates cross-format spreadsheet conversion, allowing data to be moved between different sta

Laravel-Excel is an integration library for importing and exporting spreadsheet data between Laravel applications and Excel or CSV files. It provides a suite of tools for bidirectional spreadsheet integration, including a system for reading workbooks and mapping data into database models. The library distinguishes itself through a background processing system that handles large imports and exports using chunking and job queues. It supports template-driven exports by converting HTML tables from view templates into spreadsheet cells. The toolset covers broad capabilities for large dataset proc

This is a Laravel Excel integration library used for importing and exporting spreadsheet files within the Laravel framework. It functions as both a spreadsheet data exporter for converting database queries and collections into files and a spreadsheet data importer for mapping workbook data to database models. The library includes an HTML to spreadsheet converter that transforms HTML table templates into downloadable documents to preserve specific layout designs. It supports large dataset exports via background queuing and processes bulk data imports through chunked reading and batch inserts.

PHPExcel is a PHP spreadsheet library used for programmatically reading and writing spreadsheet files in various formats. It utilizes an in-memory spreadsheet model that maps spreadsheet structures to a hierarchy of objects for programmatic manipulation. The library functions as an Office Open XML processor for generating and manipulating XLSX documents and serves as a reader for extracting data and structure from legacy binary XLS files. It also includes tools for CSV data integration and importing. The project provides capabilities for automated report generation and spreadsheet data extra

gspread is a Python client library and API wrapper designed for programmatically interacting with Google Sheets. It serves as a spreadsheet automation library that enables the creation, organization, and management of cloud-based spreadsheets via Python scripts. The library provides a simplified interface for Google Sheets automation, allowing users to read, write, and update data without writing raw HTTP requests. It supports cloud spreadsheet integration, enabling external Python applications to use Google Sheets as a data storage layer. The project covers a broad range of capabilities inc

This is a Go library for reading and writing XLSX files, providing a toolkit for spreadsheet generation and data extraction. It functions as an Office Open XML parser and generator, enabling the creation of workbooks with support for styles, formulas, and metadata. The project features a data mapper that uses Go struct tags and reflection to automatically align spreadsheet rows with structured data. It also includes a validation engine for defining input constraints, such as dropdown lists and error alerts, to control user data entry. The library covers a broad range of capabilities, includi

Reactor Core este un toolkit de programare reactivă și o fundație non-blocking pentru compunerea pipeline-urilor de date asincrone pe JVM. Servește drept framework de procesare a fluxurilor asincrone și sistem de gestionare a backpressure-ului, permițând dezvoltatorilor să transforme, filtreze și combine secvențe de evenimente în timp ce reglează fluxul de date între producători și consumatori pentru a preveni epuizarea resurselor. Biblioteca se diferențiază printr-un sistem sofisticat de programare a concurenței și control al fluxului bazat pe cerere. Decuplează procesarea semnalelor de firele de execuție specifice folosind un registru de scheduler și oferă mecanisme pentru propagarea metadatelor imutabile conștiente de context peste limitele asincrone. De asemenea, dispune de instrumente specializate pentru capturarea urmelor la momentul asamblării și programarea timpului virtual pentru a facilita testarea operatorilor bazați pe timp. Proiectul acoperă o gamă largă de capabilități, inclusiv procesarea funcțională a datelor pentru agregarea și windowing-ul secvențelor, o varietate de strategii de recuperare a erorilor precum reîncercările cu backoff exponențial și utilitare pentru a conecta API-urile legacy de tip callback sau sincrone în fluxuri reactive. Oferă, de asemenea, instrumente pentru monitorizarea pipeline-ului și o suită de instrumente de testare pentru verificarea secvențelor de semnale.

unioffice is a comprehensive document processing suite that provides a PDF document processor, an Open XML document library, a document security toolkit, and a document content extractor. It is designed to programmatically create, read, and modify Word, Excel, and PowerPoint files, as well as generate and edit PDF documents. The project is distinguished by its native language implementation of the Open XML standard, which removes native binary dependencies to simplify container deployments. It features advanced capabilities for digital document security, including hardware-based PDF signing,

Spout este o bibliotecă de procesare a fișierelor spreadsheet și un generator multi-format conceput pentru citirea și scrierea fișierelor CSV, XLSX și ODS. Funcționează ca un parser bazat pe stream care procesează fișierele spreadsheet mari incremental pentru a evita încărcarea întregelor documente în memorie. Biblioteca oferă capabilități pentru generarea programatică de spreadsheet-uri și extragerea datelor. Suportă stilizarea personalizată a conținutului, permițând aplicarea de fonturi, fundaluri, borduri și formate numerice celulelor sau rândurilor individuale. Dincolo de input-ul și output-ul de bază al fișierelor, proiectul acoperă manipularea workbook-urilor prin extragerea selectivă a foilor și modificarea conținutului specific în fișierele existente. Utilizează strategii de optimizare a memoriei pentru a gestiona procesarea spreadsheet-urilor la scară largă, indiferent de dimensiunea totală a fișierului.

GAM is a command-line tool for administering Google Workspace and Cloud Identity. It translates command-line arguments into structured API calls, enabling administrators to manage users, groups, organizational units, and domain settings across a Google Workspace environment. The tool handles authentication through OAuth2 flows, service accounts, and workload identity federation, and supports multi-tenant configurations for managing multiple domains or cloud projects from a single installation. GAM distinguishes itself through its batch processing and automation capabilities. It can process la

coobjc este o bibliotecă de coroutine pentru Objective-C care oferă metode „await” și generatoare pentru a simplifica programarea asincronă în Objective-C și Swift. Aceasta permite implementarea fluxurilor de lucru non-blocante pentru a elimina callback-urile imbricate și blocarea thread-urilor. Toolkit-ul include un wrapper non-blocant pentru Foundation, care convertește API-urile sincrone Foundation și UIKit în operațiuni suspendabile. Oferă un generator de secvențe „lazy” pentru producerea valorilor la cerere prin „yield”, precum și un instrument de comunicare bazat pe canale pentru schimbul de date între sarcini concurente, folosind canale cu și fără buffer. Biblioteca acoperă coordonarea sarcinilor asincrone și gestionarea stării, utilizând un model de tip „actor” pentru a preveni „data races”. Capacitățile sale includ programarea coroutinelor, anularea acestora și posibilitatea de a executa operațiuni de sistem de fișiere și rețea fără a bloca interfața utilizatorului.

This project is a Model Context Protocol server that provides an interface for AI agents to programmatically create, read, and modify Excel workbooks. It serves as a bridge that enables large language models to perform spreadsheet automation and data visualization. The server allows AI agents to generate native Excel charts and pivot tables from raw data, transforming structured information into visual summaries. It provides a mechanism for remote spreadsheet management through a protocol-based connectivity layer. The system covers a broad range of spreadsheet manipulation capabilities, incl

XlsxWriter is a library for generating spreadsheets in the XLSX format, functioning as an Excel workbook writer and file generator. It provides the capability to write data, apply cell formatting, and build complex layouts across multiple worksheets. The project distinguishes itself with a memory-optimized writing mode that flushes large datasets to disk row-by-row, enabling the creation of files exceeding 4 GB while minimizing RAM consumption. It also includes a specialized mechanism for embedding binary project files and digital signatures to enable VBA macros and signed scripts within work