This option requires that you have a good knowledge of your table documentation.
For example:
1) Fit all Rows on One Page.
2) Fit all Columns on One Page.
3) Fit sheet on One Page.
The default is No Scaling.
On the bottom of the conversion page, there is an option to open in the File Explorer.
When you check it, the converted files is opened in the File Explorer when the conversion ends.