The file is typically associated with Power Query (now known as Get & Transform) in Microsoft Excel . It is a system-generated temporary file or part of a data cache used when processing large datasets.
: In Excel, go to Data > Get Data > Query Options > Data Load and click Clear Cache . PQ12Nt1.7z
: It is generally safe to delete these files if Excel is closed, as they are recreated when needed. The file is typically associated with Power Query