The .7z extension signifies that this is a 7z archive , a format that uses LZMA compression to significantly reduce file size while maintaining data integrity. Unlike standard ZIP files, 7z archives often include advanced features like:
Ideal for large datasets or software distributions. DoubleAct.7z
Support for AES-256 ensures that sensitive contents remain secure if a password was applied. How to Open and Use the File Double 2 - LightAct DoubleAct.7z