Linux spark_2_0_7.tar.gz fails to ungzip and untar -- error reported

Spark Spark Support
1

tar xvzf spark_2_0_7.tar.gz

reports:

tar: This does not look like a tar archive

tar: Skipping to next header

tar: Archive contains obsolescent base-64 headers

tar: Error exit delayed from previous errors

2

What about 2.0.8 version? I was able to extract it with 7-zip in Windows. Dont know about tar. And what is the size of file? ~ 23.3 Mb