By default, termbases get converted to the selected format, and any other format gets converted to a termbase. If you want to, for example, convert directly from xlsx to tbx, you can do so by checking this box. There are no restrictions once this is checked, so you might end up converting a format to itself. But even that may be useful to convert a "dirty" spreadsheet to the Glossary Converter standard format.
Equivalent settings xml
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