Item movement, upload file

Hello.
The first column in the file should be the columns:
productid - product ID (optional, used for searching)
article - product article (optional, used for searching)
productname - product name (optional, used for searching)
code1c - external product id (optional, used for search)
price - price
currency - currency name (for example UAH)
currencyid - currency identifier
warranty - warranty (optional)
serial - serial number (optional)
shipment - delivery terms (optional)
tax - with VAT (optional)
count or amount - the amount
barcode - barcode (optional)
cell - cell (optional)