Defl3.7z -

The file appears to be a compressed archive created using the 7-Zip software, specifically utilizing the Deflate compression method. đź“‚ File Characteristics Format: 7z (7-Zip Archive).

Deflate (a lossless data compression algorithm combining LZ77 and Huffman coding ). Defl3.7z

While the .7z format itself is safe, always before opening if it came from an unknown source. Compressed archives are sometimes used to hide malicious executables. If you'd like, tell me: The file appears to be a compressed archive