Item “xxx” is used by macOS and cannot be opened.

When restoring data，You may need to use U disk copy data，But macOS default is read-only mount ntfs，of course，We have a way to use the command line to become re-mount it read-write。But this is likely to cause ntfs permission error，The result is that when plugged into another computer's，This file mayGrayed：

Figure archive can not be properly decompressed

If you use this time to force it open decompression software，Then you will get a similar error：

macOS can not open this file，It may be in use by another process

Item “xxx” is used by macOS and cannot be opened.

And in fact this is just a mount of U disk，And not being used by another process。To fix it，We need a command-line tool：

use xcode-select --install To install the command-line tool，After the installation is complete，We can use the following command to view the file attributes：

Note the highlighted lines，Here is the file type brok ，We use the command to remove this type of mark：

This time，File and return to the normal black，Can properly read。

Compressed normal-readable

References

Mac OS X – Problems with file permission into NTFS usb drive

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