opex.lxuu.dev

[active] Jan 2026

Open Excel exports in the browser—quick to load, no extra app, no ad-heavy viewers.

ViteJS ReactJS Tailwind TypeScript

A small web app for opening .xlsx (and friends) in the tab you already have open, so you can eyeball exports while you are still in the middle of building them.

Why

Whenever I ship an “export to Excel” feature in something I am working on, I end up opening the file over and over to check sheets, headers, and row after row of values. I did not want to depend on another installed program for that loop, and the hosted viewers I tried were slow, noisy, and full of ads. This site is the lightweight alternative: drop the file, skim the data, close the tab.

Stack

Vite — dev server and production build
React — UI for parsing and rendering the workbook
Tailwind — layout and styling
TypeScript — types across the app