Select the appropriate page size and orientation in the Scanner tab of the Options dialog box if you are scanning.
Select Spreadsheet in the Original Layout drop-down list of the AutoOCR or Manual toolbar. This will generate a table zone type around the entire page if you are processing your document using the AutoOCR toolbar.
Select grid and border styles for recognized tables in the Tables tab of the Options dialog box.
Manually draw zones around areas of the spreadsheet that contain numbers and specify the content of those zones as Numeric in the Zone Properties dialog box before processing.