: It is part of the binary-to-text encoding used to embed non-textual data (like charts, spreadsheets, or PDFs) into plain-text financial reports.
: Random character strings are often used as obfuscation for malicious scripts or ransomware. MVlyB rar
: If your file is related to environmental or land-use permits in Canada, it may be a truncated reference to a specific permit ID or document code. : It is part of the binary-to-text encoding