SmoothCSV is a powerful and intuitive tool for editing CSV files
Open-source, clean-room spreadsheet (Microsoft Excel-style) in Rust
A terminal spreadsheet multitool for discovering and arranging data
Firefly III: a personal finances manager
PowerShell module to import/export Excel spreadsheets, without Excel
Javascript plugin to create web-based tables & spreadsheets
A python wrapper for Alpha Vantage API for financial data.
It helps you track your personal budget and visualises income/expenses