: Compressed archives are a common vector for malware. If you received this from an untrusted source or an unsolicited email, do not open it .

: Course modules or digital textbooks (e.g., "NNLT" often stands for Ngôn Ngữ Lập Trình or Programming Language in Vietnamese contexts).

: This specific naming convention is often associated with:

: To successfully extract the contents, you must have all subsequent parts (e.g., part2.rar , part3.rar ) in the same folder.

: The .rar extension indicates a compressed file created by WinRAR or similar software. The .part1 suffix confirms it is the first volume of a "split" archive.

: If you receive a "Checksum error" or "Unexpected end of archive" during extraction, it usually means one of the parts is corrupted or missing.

: Split installers for development tools or games. ⚠️ Safety & Handling