Processing a CSV file and I can't avoid the header

[alanwilter]

I'm building a program to copy files given in file_path column of a CSV file.

This is main part of code:

    if ref_csv.exists() {
        let mut rdr: Reader<fs::File> = Reader::from_path(ref_csv).expect("Unable to read file");

        if rdr.has_headers() {
            rdr.headers().expect("Failed to read headers");
        } else {
            panic!("The CSV does not have headers");
        }

        let total_rows = rdr.records().count();
        let mut start_position = Position::new();
        start_position.set_line(2);
        rdr.seek(start_position).expect("Unable to seek to start");

        for result in tqdm!(rdr.deserialize(), total = total_rows, colour = "green") {
            let record: HashMap<String, String> = result.expect("a CSV record");
            let source_file_path = record.get("file_path").unwrap().replace("\\\\?\\UNC", "\\");
            if Path::new(&source_file_path).exists() {
            ...
            } else {
                println!("Source file not found at path: {}", source_file_path);
            }

In my test.csv, I have 3 lines: 1 header and 2 rows. When debugging my code vscode,
total_rows is correct (I see 2), but no matter what I do with start_position.set_line(2); the loop always start from the very beginning of the rdr and it will print:
Source file not found at path: file_path (and 3/3 !):

Source file not found at path: file_path
100%|███████████████████████████████████████████████████████████████████████████| 3/3 [00:00<00:00, 1058.51it/s]Time elapsed is: 3.211541ms

I'm open for suggestions, certainly there's a smarter way of doing so, I'm just a beginner in rust, but keep in mind that my input CSV won't be Giga big and I do want to have the tqdm to show a progress bar rather than just iteration speed.