You could create new column using Regex or Substitute
Names Default To Here(1);
str1 = "NLTEE(+.98)LAGLDE(+28.99)T(+10.98)IAK";
str2 = "SYELPDGQV(+.98)I(+10.98)T(-17.03)IGNER";
Show(Regex(str1, "[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]", "", GLOBALREPLACE));
Show(Regex(str2, "[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]", "", GLOBALREPLACE));
This assumes that you want to only keep the letters. You can build it for example by using Recode
and you can use regular expressions with search also
Edit:
Better regex is most likely something like this
Names Default To Here(1);
str1 = "NLTEE(+.98)LAGLDE(+28.99)T(+10.98)IAK";
str2 = "SYELPDGQV(+.98)I(+10.98)T(-17.03)IGNER";
res1 = Regex(str1, "\(.*?\)", "", GLOBALREPLACE);
res2 = Regex(str2, "\(.*?\)", "", GLOBALREPLACE);
show(res1, res2);
-Jarmo