You should be able to just connect and query the database from Excel. You just use the login that lets you at the data. I've done this from Excel (and Access) and it works just fine.
As far as getting it out to .SQL format, the best advice I can give here would be to run the import/export to create a BACPAC. This can then be loaded into a local instance of SQL SErver and from there you can export out to .SQL just fine.
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SQL Server Query Performance Tuning