There is include_headers_line=True in CsvItemExporter but I don't know how to use it directly.

http://doc.scrapy.org/en/latest/topics/exporters.html#csvitemexporter

But you can create own exporter with include_headers_line=False in file exporters.py (in the same folder as settings.py and items.py)

from scrapy.exporters import CsvItemExporter


class HeaderlessCsvItemExporter(CsvItemExporter):

    def __init__(self, *args, **kwargs):
        kwargs['include_headers_line'] = False
        super(HeaderlessCsvItemExporter, self).__init__(*args, **kwargs)

Then you have to set this exporter in settings.py

FEED_EXPORTERS = {
    'csv': 'your_project_name.exporters.HeaderlessCsvItemExporter',
}

And now scrapy should write all csv files without headers.

scrapy crawl <project> -o <filename.csv>

Or you can set

```python` FEED_EXPORTERS = { 'headerless': 'your_project_name.exporters.HeaderlessCsvItemExporter', }

and get csv without headers only when you use `-t headerless`

```bash
scrapy crawl <project> -o <filename.csv> -t headerless

ps. don't forget to use your project name in place of your_project_name in setttings.py

---

EDIT:

Now exporter skips headers only if file is not empty (if file.tell() > 0)

from scrapy.exporters import CsvItemExporter

class SkipHeadersCsvItemExporter(CsvItemExporter):

    def __init__(self, *args, **kwargs):

        # args[0] is (opened) file handler
        # if file is not empty then skip headers
        if args[0].tell() > 0:
            kwargs['include_headers_line'] = False

        super(SkipHeaders, self).__init__(*args, **kwargs)