User-friendly Windows App for .upz Files

Job ID: 39328571

Budget: $250 – $750 USD

User-friendly Windows App for Managing .UPZ Files

I’m seeking a skilled Windows application developer to build a lightweight, user-friendly tool that can unpack, allow modification, and repack .upz archive files using MiniZip and zlib compression.



Project Overview

We use .upz files to store compressed configuration data in a proprietary format. These files are compressed using standard MiniZip/zlib methods, and we require a custom tool to facilitate controlled extraction, editing, and re-compression.



Key Requirements
• Unpack .upz archive files compressed using zlib/MiniZip.
• Enable third-party editing of extracted text/configuration files.
• Repack modified files into the same .upz structure.
• Preserve the original file structure during repacking.
• Include a drag & drop interface for user convenience.
• Perform file integrity checks before repacking:
• If issues are found, display a warning and allow the user to continue.
• Deliver a clean, unbranded GUI that focuses on ease of use.



Optional Bonuses

Candidates with the following experience are preferred:
• Understanding of file system compression techniques.
• Familiarity with binary data packaging and reverse structure mapping.
• Ability to deliver both the compiled application (.exe) and source code.



Sample File

The test archive exceeds the 25MB limit. You can securely download it from this link:

Google Drive: https://drive.google.com/file/d/1kz1uouM53_9PPpm_dWCoRuVDAYC2RIAF/view

Please confirm once downloaded.



Skills Required
• Windows Desktop Application Development
• C/C++ or C# Programming
• zlib / MiniZip integration
• Software Architecture
• UX/UI for lightweight utilities



Looking forward to working with a reliable and experienced developer.