Document or electronic form created with Snapform Designer; saves data in a vector-based format that can be zoomed and printed without losing quality; may also contain form fields that can be filled in by the user; similar to the .PDF format, but uses proprietary Ringler Snapform formatting.

Snapform is available for Windows, Macintosh, and Linux platforms.

Label Matrix saves label designs as QDF files. They may contain text, barcodes, images, and other content.

TEKLYNX Label Matrix is a label design program used for creating printable labels, such as product UPCs and mailing labels. It includes design and database connection wizards which help streamline the label creation process.

Financial data format used by Quicken personal finance software for Windows; saves accounts, transactions, portfolios, and balance information.

The QDF file is the primary data file saved by Quicken. Other related ".q**" files may be recreated by Quicken as long as the QDF is valid.