How to extract vell value by range in excel? -

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i have excel sheet head in every 5th cell , cell between member of head
how can extract member of head in format :

head1,member1,member2,member3 head2,member1,member2 head3,member1,member2,member3,member4

my excel file : 

head1 - - member1 member2 - - head2 member1 - member2 - - - head3 member1 - member2 member3 member4

try this:

sub extract()     dim r range, textrow string, out range     set r = [a1]     set out = [b1]     while r.value <> ""         if instr(r.value, "head") > 0             if textrow <> ""                 out.value = textrow                 set out = out.offset(1)                 textrow = ""             end if             textrow = textrow & "," & r.value         end if         if instr(r.value, "member") > 0 textrow = textrow & "," & r.value         set r = r.offset(1)     loop     if textrow <> ""         out.value = textrow         set out = out.offset(1)     end if end sub

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