Zip an excel in a shell script

I am getting an xls file in the dir errorpath. I would like to zip it. Kindly help me on this.

The code is as below.

 
sqllst=$errorpath/$run_pgm.${date_stamp}".xls"             sqlstatus=$errorpath/$run_pgm"."${date_stamp}".sqlstatus" sqlscript=$binpath"/im_rpt.sql"           

You paste the code with wrong format.

sqllst=$errorpath/$run_pgm.${date_stamp}".xls"
sqlstatus=$errorpath/$run_pgm"."${date_stamp}".sqlstatus"
sqlscript=$binpath"/im_rpt.sql"

What's the relationship with zip ?

In the above code i am getting an excel (xls) file in the error directory . I want to zip(Compress) that perticualr excel there. Kindly suggest how to go further.