REPLACE ALL OCCURRENCES OF <Text to be replaced> IN <Original Text> WITH <Text to replace>.

if the material description consist special characters like "--", that will causing the output excel file out of alignment. 

Using above code to replace all the "--" to blank or space:

example:

gv_text = 'Serkan--AKKAVAK is a Comp.Eng.'.

REPLACE ALL OCCURRENCES OF '--' IN gv_text WITH ' '.

Output:

Serkan AKKAVAK  is a Comp.Eng.

Serkan AKKAVAK
Computer Engineer
serkurumsal@yandex.com