If the running balance on your Commerce Bancshares statement does not add up row by row, that is exactly the kind of mismatch Convert·Into is built to catch rather than pass through silently. Upload a statement document; the engine begins by reading every transaction row and the printed closing balance shown on the statement itself. It recalculates the running balance line by line, comparing its own sum against that original closing figure. When the two match, the extraction is complete and the file is ready for export. A mismatch flags a specific row for review rather than rejecting the whole statement, so a single misread digit does not require you to start again from scratch.
If the Commerce Bancshares statement you have is a scanned image or a phone photo instead of an exported file, that alone does not stop Convert·Into from reading the transaction table off it. Scanned or photographed statements are processed with optical character recognition, and the same running balance verification applies to the result. The check catches most reading errors without manual comparison of every line. After review of any flagged rows, the data exports through the same clean mapping to your choice of format.