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It depends on how it was "formatted". If you have done a simple format, you should be able to recover your data with some simple consumer tools. Most likely the filenames will be lost.
Currently, there is no need to hire specialists to extract data. There are a lot of useful applications, know about them in the article data recovery software for Macbook users that cope with the task. You just need to find the one you like the most. Below you should check out the best file recovery solutions for Macbook that are suggested in the article that I have given you.