You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. 7z - Википедия
Can handle extremely large files, with a theoretical limit of up to 16 exbibytes. How to Access the Report: SIYM.7z
Based on your request, "SIYM.7z" appears to be a compressed archive file using the format. You can use 7-Zip on any computer, including
Supports strong AES-256 encryption , allowing you to password-protect the contents of the report. most notably LZMA and LZMA2
To view the contents of SIYM.7z , you will need a file archiver that supports the format. Common options include:
Uses various algorithms, most notably LZMA and LZMA2 , which offer advanced data reduction.