The requested "piece" is likely from the Pennsylvania Department of Revenue. This specific form is titled "Schedule to Provide Reason for Filing an Amended Report and Summary of Change in Tax Liability for Amended Report".
: Detail the specific changes in tax liability between the original and amended filings. Pack 1175.zip
In the context of a ".zip" file or a tax package, this schedule is used to: The requested "piece" is likely from the Pennsylvania
: Provide the official reason for filing an amended Pennsylvania Corporate Net Income Tax Report. Pack 1175.zip