Kaddi

Yes, I use the amazing SquarespaceWebsites Tools PRO Chrome Extension. It's a game changer and can migrate all blog content (although not comments). Alternatively, you can hire someone to migrate it for you 🙂.
The problem with migrating from 7.0 to 7.1 is that there is so much that must be recreated manually. For example:
Uploaded files cannot be migrated. You will need to manually upload each file to the new site and then reconnect each link. Subscriptions (including memberships) cannot be migrated.  Digital product purchases cannot be migrated, preventing customers from re-downloading their digital purchases.  Customer accounts and profiles cannot be migrated. Squarespace Email Campaigns cannot be migrated. Squarespace Scheduling cannot be migrated. Backend data cannot be migrated. This means that you will not be able to look back at analytics data, customer accounts or historical order data.  Commerce settings and payment processors cannot be migrated.  Product reviews cannot be migrated. Squarespace Extensions cannot be migrated.  Digital products cannot be migrated.  Index pages cannot be migrated. The URL slug of individual product detail pages will change. Squarespace 7.1 site headers are more restrictive. Custom code must be re-written. Third-party plugins may need to be repurchased for Squarespace 7.1. Did this help? Please give feedback by clicking an icon below  ⬇️