A compressed file (with the file extension .qar) that contains compressed versions of the Quartus^® II project files as they existed when they were archived. The Quartus II software automatically selects files to include in a QAR File, but you can rearrange, remove, or add files to the contents of a QAR File before you create it. A QAR File can include a project's design files, source files, and ancillary files, as well as system libraries. You can restore a QAR File multiple times.

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