Awesome GitHub RepositoriesSpreadsheet Data Validation

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

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

Wuhan2020 is an open platform for collecting, validating, and visualizing epidemic relief data, originally focused on coordinating community response during the COVID-19 crisis. It aggregates information on hospitals, factories, logistics providers, hotels, and donations from multiple sources into a central repository, making it accessible through an interactive geographic map and a programmatic API. The platform distinguishes itself by using GitHub issues as its primary data store, with label-driven organization and command-based task assignment that allows volunteers to claim and track work

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

This application is a personal finance tracker that utilizes a cloud-based spreadsheet as its primary database for recording and organizing daily spending. It provides a web-based dashboard for managing individual transactions and generating monthly summaries to assist with budget oversight. The project distinguishes itself by leveraging spreadsheet-based storage to enable collaborative financial management, allowing multiple users to access and update shared records in real time. It further automates record maintenance through recurring transaction scheduling and integration with external wo