I.R.I.S. Readiris 14 for Mac User Guide - Manual (Page 31)

Section 3: Basic Document Processing
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Step 4: Select the Output format
 In the Format and Destination group, click the output format
you want to generate.
You can, for instance, save your documents as DOCX documents
to do text editing, or save them as PDF documents for storage
purposes. For detailed information about the different output
formats and the different formatting options, see the sections
Saving Documents and Selecting the Layout Options.
Default options are applied for each format you select: when you
select PDF for instance, the output file will be opened in the
Preview application. DOCX and RTF documents will be opened
in the installed text editing applications. XLSX documents will
be opened in the installed worksheet editor.
To change the options:
 Double-click the required Output format.
 Select the Destination of your choice: