Re-importing shows only what you edited

Download the products export, change the prices in Excel and upload it back - the preview now shows only the cells you changed. Numbers read back exactly, Cyrillic addresses stay, attribute values and keywords with a comma inside are not split, and related products without a catalogue number are kept.

Columns the import recognises automatically (translations, attributes, sections, quantity pricing) now offer "- Not imported -" on the Map columns step - import just the new prices and leave everything else untouched.