Spark can't install proper

i have 64 bit ubuntu(12.04 lts) os.I am trying to install spark2.6.3 on that ..i have done following steps

1) downloads taz.gz file

2)unpack it on desktop

3)mv Spark to /opt

and run this command

4)sudo sh /opt/Spark/Spark

now it is giving an error

"ls: cannot access /opt/Spark/lib/windows: No such file or directory"

How can I fix this error plz help me.