Short Answer: Select the numeric row that contains your file's column headings using the 'Header row' dropdown the example shows '1'.
PreRequisites
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The dialog 'Configure VAT / sales tax statement' is open.
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You can see rows in 'Data preview (20 rows)'.
Steps
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Look at the table under 'Data preview (20 rows)' to find which line contains the column names.
You identify the row index that holds the headers. -
Open the 'Header row' dropdown in the 'Required fields' panel and choose that row number example: '1'.
Header row is set to the correct index. -
Verify the column headings in Data preview update to readable names e.g., 'Return Date', 'V A T Period'.
Column headers display correctly for mapping.
Troubleshooting
- Columns still show generic names like 'Column4'.
LikelyCause: Wrong header row selected or file has blank rows above headers.
Action: Try a different 'Header row' number until headers align; if the file lacks headers add them in the source file and reopen the import dialog.
Note: Header row is the starting point — set it before mapping other fields so dropdown labels match your columns.