Flutter App Conversion to Windows PC

I'm looking for a professional to modify and convert two existing Flutter apps, originally designed for Android, to a Windows PC platform. These apps are intended for use on a Samsung tablet or mobile phone and I have all the native files ready for this task.

Key Requirements:
- Integration of new features specific to Windows.
- Implementation of file management and reporting tools into the converted apps.

File Management Features:
- The apps should allow for file upload and download.
- Incorporation of file sharing capabilities is also necessary.

Ideal Skills:
- Proficiency in Flutter and Windows app development.
- Experience with implementing file management tools in apps.
- Ability to enhance UI/UX and ensure security in the conversion process.

Your expertise will be instrumental in making these apps functional and user-friendly on a Windows PC, while also adding necessary new features. Your bid will be considered based on your relevant experience and ability to deliver a high-quality product.