Explanation for Stocks import :

1 - Expected Stock import file extension : .csv
2 - Expected Stock import file name : stock.csv
3 - Expected CSV structures are visible in websites CSV samples. Example : eu_sample.csv in this folder shows expected CSV structure for Europe Website
4 - After import, if it goes well all file in each import stocks folders will be delete
5 - If there is no file in folder, nothing will import into the stock management