string workbookname$ = book1;  // workbook name is book1 here
range r1 = [workbookname$]sheet1!col(1);  // use the string variable

range ra = [book1]sheet1!col(A);  // column A
range rwks = [book1]sheet1!;  // sheet1
for(ii = 1; ii <= rwks.maxrows; ii++)  // loop to get all the book names
{
	string strbookname$ = ra[ii]$;  // get the iith book name	
	strbookname$ = ;  // print the book name
}

range rBook1ColA = [book1]sheet1!col(A);  // column A in book1 sheet1
range rBook1fxColA = [book1]sheet1!col(fxColA);  // column fxColA in book1 sheet1
range rBook1Wks = [book1]sheet1!;  // sheet1 in book1
for(ii = 1; ii <= rBook1Wks.maxRows; ii++)  // loop to get book names for calculation
{
	string strBookname$ = rBook1ColA[ii]$;  // get the book name
	range rr = [strBookname$]sheet1!col(A);  // define the corresponding column A
	rBook1fxColA[ii] = max(rr);  // calculate the maximum and put to column fxColA
}