sample cvs file is used to import to systems or used as a template of other files. These files may include information about products such as name, price, image, brand, etc. If you build an importing product module, you should create asample file so that users can use the module easily.
If you use Shopify platform, you must have been familiar with this term. Because when you are going to import products, the system will announce that you should download the sample file to know the exact format of the system. So, you can edit your csv file to be the same with the sample file’s format.
Similarly, other systems also provide you with sample cvs file or sample exel file. Their aim is to help you edit your file according to their sample file. When you follow the sample file, importing product becomes extremely easy and simple.
In other systems such as Woocommerce, Prestashop, Magento, you should implement similarly. You should pay attention to the structure of the sample file. For example, fields are separated by doc (.) or comma (,). They are distributed in columns or rows.
You can download sample cvs file in order to know the structure of the file depending on using purposes.
If you are using Prestashop source code, I suggest that you should use Import product module. I have used many different modules and the default feature of this system as well. However, I find that the importing feature of the system is so bad. When you use the module I suggested before, you do not need to view sample cvs file because it includes a custom edit feature, and works well with formats of the files. In addition, if you have any problem when importing, you just need to contact developers. They will support you via email or Teamviewer. If you are interested in this module, please refer to here