Trailing Minus Sign ("-") Treatment – In certain financial documents or reports, the minus sign symbol trails to the right of the number that it is associated with (e.g. "4,560–" instead of "–4,560"). Converting negative numbers where the minus sign trails to the right of the number may cause the resulting conversion to Excel to place these numbers as text items, rather than number items.
Use this option to move trailing minus signs from the end of the number to the beginning of the number, to prevent such instances from being converted to textual items in Excel.
This article refers to Able2Extract and Able2Extract Professional.