I have never been a fan of Spreadsheets for tracking trades as it can become difficult over the time to enter them manually. You should check out Cointracking Portfolio Manager.

It has

1. Automatic import of trades through APIs.
2. Average purchase and sale price reports.
3. Booked and unbooked profits.
4. Ability to calculate your taxes.
5. Set up price notifications.

For details of how to use these features checkout this post.