PowerPoint Presentation Revamp with New Branding

I need an existing PowerPoint presentation updated with new branding elements and content modifications based on an Excel spreadsheet.

Key Requirements:
- Update colors, fonts, logos, and images throughout the presentation.
- Revise the slide layout and design to align with the new branding.
- Modify existing content as specified in the provided Excel spreadsheet.

I will supply the new branding guidelines. The ideal freelancer for this project should have:
- Proficiency in PowerPoint and Excel.
- Strong attention to detail.
- Ability to follow branding guidelines meticulously.
- Experience in content modification and presentation design.