To import a database from a file from Prom.ua you need:
In the menu, select Products -> Import / Export.
Select Prom.ua Excel import.
Then click “Select file”, the file must be in .xlsx format.
Select the base currency, which is indicated in the file, and also select the base language (which is specified by default).
In order for the information to be displayed in other languages, you must also make a download for the available languages of the site.
Click the checkmark to import images (this procedure takes a long time).
Click the checkbox to clear the current database of products / categories / manufacturers / attributes.
Then click the "download" button.
Expect the output of information about how many products, categories, manufacturers, attributes, attribute values have been added.