Convert Excel spreadsheet into membership dashboard website

I have an Excel spreadsheet containing various charts and outputs calculated using user input values.

The spreadsheet has a Dashboard tab and other tabs representing the pages required.

The main requirement of this project is the ability to convert the Excel document into a fully functioning dynamic website.

1. A website where users can sign up for free with just their name, email and password.
2. Once signed up, users input their information for the calculations to run (full account setup). Until this is completed, they should see a holding page.
3. A dashboard page to show high level charts/graphs etc. There will also be other pages where the user can see more specific information. All of this is contained in the spreadsheet.
4. The user can upgrade their account to a paid membership account at any time to access features
5. The user can update the information they initially entered on sign up in a Settings page which should update all calculations accordingly.
6. Support ticket system for users to raise queries

Full web design and development required.

I also require an admin page to view all users registered and ability to login as a user.

Ability to also make an Android and iOS app to go with this would be an advantage.

Note: the Excel spreadsheet is a work in progress so I will need someone who can make regular updates to the site.