Adobe ACROBAT 3D Manual page 236

Exporting form data
You can export the data you've entered into a form to a separate file. Exporting form data
lets you save existing data to a file that's considerably smaller than the original PDF file.
A smaller file is preferable for archiving or sharing the data electronically. You can save
the form data as a tab-separated text (TXT), Acrobat XFDF (XFDF), Acrobat Form Data
Format (FDF), or Extensible Markup Language (XML) file. Some of these file formats are
available only when you're exporting the data from particular PDF forms, such as a PDF
form created in Adobe LiveCycle Designer.
You can also import data from an exported file into another form if that form has fields
with the same names. Alternatively, you can import file data from a text file. (See
Importing form
To export form data to a file:
1. Open the Adobe PDF form and fill it out.
2. Choose File > Form Data > Export Data From Form.
3. Choose a format type from the Save As Type menu, specify a location and file name, and
then click Save.
data.)