Open C:\ConversionData to view the files that you backed up. A valid ProSeries backup contains files with extensions of .18i, .18p, .18c, or .18s. You'll have one file for every client you're submitting. Your computer settings may hide the extensions, but the icons should appear to be ProSeries files.
The main purpose of this conversion is to get your data ready for the following tax year so that viewing a Form 1040 won't display the same results that had been filed. The conversion is very limited and includes only the basic information in the following PDF document.