Searching string from rtf file within NSbundle

[Shubhank]

Hello everyone ..
iam kind of new to iOS development as well as iPhonedev sdk .so if there is any problem with my post do tell .. i will correct them.

I want to retrieve strings form the text file i have ..
the file is within my application main bundle
its content are
#start word1 First word end word2 Second word end //lots of things to be added later

  path = [[NSBundle mainBundle]pathForResource:@"words" ofType:@"rtf"];
    if(path)
    {
        NSLog(@"path exists");
    }
    NSError *error = nil;
    
    NSString *file = [[NSString alloc]initWithContentsOfFile:path encoding:NSUTF8StringEncoding error:&error];
    if(error)
    {
        NSLog(@"error");
    }
    NSString *finalword= [[NSString alloc]init ];
    NSString *startfrom = [[NSString alloc] initWithFormat:@"word%i",i+1];
    i++;
    NSLog(@"%@",startfrom);
    NSString *wordoftheday = [[NSString alloc]init ];
    NSScanner *scanner = [NSScanner scannerWithString:file];
    [scanner scanUpToString:startfrom intoString:nil];
    [scanner scanUpToString:@"end" intoString:&wordoftheday];
    finalword = [wordoftheday substringFromIndex:[startfrom length]];
    NSLog(@"%@",finalword);
    Word.text = finalword;

code is working fine but it leaves me with memory management issues.

also this method is in my viewdidload .
i want the label to change text when user click a button .. i will have to write the same code again in that method which leaves me with more memory issue.

Kindly help