Xero Setup & Custom Invoice Templates

I need assistance setting up Xero with a focus on customizing invoice templates and managing data migration from spreadsheets.

Key Tasks:
- Migrate data from spreadsheets to Xero.
- Create custom invoice templates in Xero.
- Provide advice on setting up automatic payment reminders for invoices.

Ideal Skills:
- Extensive experience with Xero.
- Strong background in data migration.
- Proficient in designing custom templates.
- Excellent knowledge of invoicing and payment systems.
- Ability to provide clear, understandable advice.