What does the error “Drupal Commerce CSV file got corrupted” mean?

To successfully upload your Drupal Commerce files into wizard, check them in terms of the following issues:

• The first line of the file shouldn’t be empty.
• The number of columns in the header and in the lines of files should match.
• The contents of the columns should correspond to the title (e.g. the category column shouldn’t include the product weight).

Besides, make sure to rename column names to English equivalents, so that the names could be recognized and the data could be migrated correctly.

Here’s how a valid CSV-template should look like: