how to delete special characters from the file content

Hello Team,

Any one suggest how to delte the below special character from a file which is having one column 10 rows of same below content.

----------------------------------------

Kosten|bersicht gemd_ ' =Welche Kosten kvnnen wir Ihnen gesondert in Rechnung stellen?= der
....
....
.....
10 record(s) selected.

out put should be:

Kosten|bersicht gemd_ ' Welche Kosten kvnnen wir Ihnen gesondert in Rechnung stellen? der

Regards

sed 's/=//g' infile

<your sql cmd > | ruby -pe 'gsub(/=/,"")'