Xcode - Create csv/spreadsheet file

Question

I have three arrays. The first array contains strings, same as the second, however the third one contains NSNumber\'s. Anyways, back on topic... how can I creat

Answer 1

NSArray *firstArray, *secondArray, *thirdArray;

NSMutableString *csv = [NSMutableString stringWithString:@"Name,Date,Miles"];

NSUInteger count = [firstArray count];
// provided all arrays are of the same length
for (NSUInteger i=0; i<count; i++ ) {
    [csv appendFormat:@"\n\"%@\",%@,\"%d\"",
        [firstArray objectAtIndex:i],
        [secondArray objectAtIndex:i],
        [[thirdArray objectAtIndex:i] integerValue]
     ];
    // instead of integerValue may be used intValue or other, it depends how array was created
}

NSString *yourFileName = @"your filename";
NSError *error;
BOOL res = [csv writeToFile:yourFileName atomically:YES encoding:NSUTF8StringEncoding error:&error];

if (!res) {
    NSLog(@"Error %@ while writing to file %@", [error localizedDescription], yourFileName );
}