Rishikesh324/File-Processor — reverse-engineered prompt

Build me a private customer info and document manager that works fully offline in the browser and can also be packaged as an Android app. I want people to be able to upload Excel, Word, PowerPoint, and text files, then have the app break them into useful editable pieces like spreadsheet rows and columns, Word paragraphs, slide text, and text lines.

Make it feel fast and polished, with a clean modern interface, smooth little animations, and an easy sidebar style layout. Users should be able to search through their local data instantly, edit content directly in the app, rename spreadsheet columns, update cells, and have everything save automatically on the device only. No cloud syncing, no server, no data leaving the device.

Please also include export so edited content can be downloaded again, and make sure the project is set up so it can be compiled into a native Android APK that still works offline. If you need to, look up the current docs online and wire up whatever is needed to make the whole flow work cleanly.