You cannot open this file by itself. To extract its contents, you must have all preceding parts (e.g., .001 through .013 ) and any subsequent parts in the same folder.
The .014 extension indicates this is the 14th segment of a multi-part archive. PnAoil.7z.014
7z code is a part of 7-Zip program distributed under the GNU LGPL. You can download 7-Zip sources and binaries from Download Page. You cannot open this file by itself
If you are looking for a specific transcript or document that was supposed to be in this file, you must first complete the extraction process above. 7z code is a part of 7-Zip program
Right-click on the first file in the sequence (the one ending in .001 ) and select "Extract Here" or "Extract to..." . The software will automatically combine all segments into the original folder or file.
The file is a specific split archive part of a larger compressed file, likely created using the 7-Zip utility. Understanding the File Type