Spreadsheet viewer & converter | bale sheet

Hey Product Hunt! 👋 I’m excited to share Bale Sheet with you today. A few years ago, I was working on an Intel MacBook, and I grew frustrated with how heavy and sluggish standard spreadsheet software felt. I found myself sitting through splash screens and resource-heavy loading cycles just to check a single value or peek at a file. I realized I didn’t need a full office suite to view data—I just needed a tool that was fast, native, and ready to go. So, I built Bale Sheet — a lightweight, native spreadsheet viewer for macOS. No ribbon UI, no loading screens, no cloud sign-in. Just drag, drop, and view. What makes it different: ⚡ Native Speed: Built with Nim + OpenGL, it’s designed to be snappy and responsive from the moment you launch it. 📂 Format Champion: Supports everything from modern standards (.xlsx, .ods, .numbers, .csv) to legacy formats like Lotus 1-2-3 and Quattro Pro. 🛠️ Built for Developers: Easily generate ORM models and data-reading code for 10+ languages (Python, TypeScript, Go, Rust, etc.) directly from your files. 🔒 Privacy-First: Everything stays on your Mac. Zero network calls. Who is this for? Anyone who needs to view or convert a spreadsheet without launching a bloated suite. Developers who want to quickly turn spreadsheet data into usable code. People dealing with obscure, older file formats that modern apps have dropped. The Tech Story: I chose Nim for this because I wanted the performance of a systems language with a developer experience that’s actually fun. Pairing it with NanoVG for rendering ensures the app stays fluid, even with larger files. The app is live on the Mac App Store and ready for you to try. I’d love your honest feedback—especially if you put the code generation to the test or have a "weird" legacy file you’ve been struggling to open. Ask me anything! Happy to talk Nim, the headaches of spreadsheet parsing, or the reality of indie macOS development. 🙌