Writing a text file from multiple query's is not any different than writing it from one.
Well... you can always open a file for appending...
so depending on your particular format,
//query number 1
$current_resume=$result->{'CustomerID'}; // or the like
open (FILE,">>$current_resume"); // open the file based on the curren
+t user in APPEND MODE
print FILE $header_information; // title and so on
print FILE $query_one_data;
close FILE; //IF NECESSARY
//query number 2
open (FILE,">>$current_resume"); //IF CLOSED previously.
print FILE $query_two_data;
close FILE;
// etc... for as many queries that you need.
I may be way off target, but that's what the reply button is for.