When software generates or "downloads" these files (often in a .txt format but sometimes compressed as a .zip for submission), it must ensure the ZIP code is correctly placed in this specific "piece" of the data record. Other Potential Matches

The phrase most commonly refers to a specific technical location (byte positions 141 through 145) within standard electronic tax and wage filing formats used by government agencies. Technical Meaning

EFW2 Reporting for Municipal Income Tax – 2022 Page 1 of 4

While less common, the numbers appear in other specific download contexts:

In the EFW2 Reporting Specifications , which is the standard format for electronic filing of W-2 information, are designated for the Employee's 5-digit ZIP Code .