## Manual Mailings (CSV Upload)

- [Step-by-step guide](https://help.optilyz.com/en/support/solutions/articles/43000490935-step-by-step-guide)
- [Segmentation Mailing - Personalization made easy](https://help.optilyz.com/en/support/solutions/articles/43000530213-segmentation-mailing-personalization-made-easy)
- [How do I upload data for a single campaign?](https://help.optilyz.com/en/support/solutions/articles/43000494014-how-do-i-upload-data-for-a-single-campaign-)
- [How do I create a CSV file?](https://help.optilyz.com/en/support/solutions/articles/43000493964-how-do-i-create-a-csv-file-)
- [How do I open a CSV file (Windows)?](https://help.optilyz.com/en/support/solutions/articles/43000493976-how-do-i-open-a-csv-file-windows-)