: The format supports AES-256 encryption , which can protect the entire multi-part archive with a password. How to Extract the Files

A file ending in is the first volume of a multi-part (split) compressed archive created by the 7-Zip software. Large files are often split into smaller "parts" to make them easier to upload, email, or store on devices with limited file size limits. Key Characteristics

: These files typically use the LZMA or LZMA2 algorithms, known for high compression ratios and lossless data preservation.