After importing your data into Affinity, you will receive an email stating that your import has been complete! However, you may find that sometimes there are cell errors or entirely skipped rows due to numerous reasons such as improper data formatting, typos, etc.
Now, you can go to Settings > Data imports to see your entire history of data imports and download CSV files explaining which cells/rows were skipped.
Rows Skipped provides you with a CSV file showing the rows that were skipped and the reasons why.
Errors provides you with a CSV file showing the specific cells that were skipped and the reasons why.
From there, feel free to make the necessary changes, conduct another quick import, and you're good to go.