Database will not update! grr

Question

I am using an excel database to store a string "Verb" and a number "Type".
Heres the thing:
The update works IF excel has the database open and is displaying it. Then when i click the save button, I can see in excel that my verb has popped up. Then, when i close out of excel, it asks me to save, even though i have done nothing using excel. if i save, the data sent from my program remains, if i do not, it is not there when i open it again.
If excel is never open, the function executeUpdate returns 1 which means it was successful, but if i open the database in my program in excel, the data is not there. Here's my functions:
getConnection:
          String Driver = "";
          String Url = "";
          String Username = "";
          String Password = "";
          Connection Con = null;
          try
               Driver = "sun.jdbc.odbc.JdbcOdbcDriver";
               Url = "jdbc:odbc:Excel Files;DBQ=";
               Url += FilePath+"\\"+FileName;
               Username = "";
               Password = "";
               Class.forName(Driver); // load JDBC-ODBC driver
               return DriverManager.getConnection(Url, Username, Password);
          catch (Exception e) {System.out.println("getConnection:  "+e.getMessage());}
          return(Con);
and one that updates the data:
     String FilePath = DataBases.getRootDirectory();
     String FileName = "StemChange.xls";
     Connection Con = DataBases.getConnection(FilePath, FileName);
     Statement Command = null;
     String Update = "insert into [Sheet1$] (Verb, Type) values ('Acostar', 3)";
     System.out.println(Update);
     int i = 0;
     try
          Command = Con.createStatement();
          i = Command.executeUpdate(Update);
     } catch (SQLException e) {System.out.println("Execute: "+e.getMessage());}
     if (i == 1)
          System.out.println("Success");
     else
          System.out.println("Failed");
Does anyone know how i can get this to update without ever using excel, otherwise the program is useless because you could just do it through excel anyway and i REALLY REALLY don't want that.
thanks, lateralus

Answer 1

1) Give due consideration to not using Excel. Access might be a good alternative. Excel is really not a database and thus can have all sorts of weirdness when you try and use it as a database.
2) Close your connection. Due to ODBC shenanigans if you use a file based ODBC datasource then you need to close the connection in order to flush the changes to the file. Simply close the connection (which you should be doing anyway) and see if that helps ( it may). I would recommend not having the file also open in Excel at the same time.