Can anyone recommend an excel template for cashflow and P&L projections?
I could recommend something. But my business is a £60m manufacturer with GBP, EUR and USD customers and suppliers, with payment terms in both directions from 30-90 days. We're not under particular cash pressure, so I can forecast monthly rather than weekly.
If your business is similar, my model might be suitable. But it probably isn't.
You need to define your requirements before anyone can make a meaningful recommendation. And before you can properly evaluate the offerings.