Whichever order your BMCI statement prints its columns in, each one still has to land in the right place once it reaches a spreadsheet. Once the statement document is processed, the table of transactions is ready for your ledger. The column mapping step aligns every extracted field with the column your downstream tool expects. You assign each column, such as date, description or amount, to its matching export field once; the assignment is remembered and applied to subsequent conversions from the same layout. No data is rearranged unless you choose to move it.
Once your BMCI statement is uploaded, what you get back depends on which export format you actually need next. The export stage gives you the file in the exact format your workflow needs. Choose Excel to open directly in a spreadsheet, CSV for plain-data portability into ERP and analysis tools, or QBO to import straight into QuickBooks. The conversion preserves the transaction table structure and the verified running balance, so the exported file is a faithful record ready for reconciliation. No extra cleanup or reformatting step is required.