Unzip failed with below error ' gzip: somefilename_LINUX_tar.gz: not in gzip format

unzip failed with below error ’ gzip: somefilename_LINUX_tar.gz: not in gzip format

It is in a tar format. The command to extract should be:

tar -xvf your-file.tar.gz

OR

tar -zxvf your-file.tar.gz

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