you’re able to check the detailed guide below.
Also, if you should probably recover deleted/lost/hidden files on Mac, this post also attaches an easy guide.
Way 1.
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In Finder, you could pressCommand + Shift + .to show hidden files.
If you want to hide those files again, you’re able to press this shortcut again.
This method applies to macOS Sierra or higher.
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How to format SD card on Mac without losing data?
Way 2.
4 ways are included.
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Way 3.
It even supports restoring data from a crashed Mac and recovering data from a corrupted or formatted hard drive.
you could also use it torepair corrupt files after recovery.

Step 1.you could launch Stellar Data Recovery for Mac to enter into its main interface.
This smart data recovery software for Mac will start scanning all the data on the selected drive.
Step 3.Wait until the scan process finishes.

you could see all detected files incl.
deleted/lost/hidden files are displayed in the scan result window.
you’ve got the option to browse the scan result to find your needed files and clickRecoverbutton.

Select a destination and clickSavebutton to store the recovered files to a new location.
Conclusion
This post introduces three ways to help you show hidden files on Mac Mojave/Catalina/High Sierra.