Provide a set of spreadsheet inApple Mac Numbers

Architect firm with 12 years of trading is splitting the business into 2 parts (1 for non vat residential + another for commercial clients with vat). We have a number of spreadsheets in place to manage each project and another to provide an overview of all projects and another to follow invoices & another for expenses to freelancers.

We would like to amalgamate these 4 speadsheets into a mega, connected spreadsheet with a job book / resourcing for each project so the project management & finances are more automated.

And start using Xero for invoicing.