You should use 7-Zip 15.05 or later, or any utility based on the 7zxa.dll 15.x series or newer.
The file is an archive associated with high-efficiency compression discussions, specifically regarding the 7-Zip format and its ability to handle large dictionary sizes. Technical Profile LoLand183ms.7z
If you encounter a "Can not open file as archive" error, it may indicate a corrupted header. This can sometimes be diagnosed by opening the file in a hex editor to inspect the Start or End headers. Comparison with Other Formats You should use 7-Zip 15
LZMA2:1536m . This uses a massive 1536 MB dictionary size, which was first introduced in 7-Zip 15.05 beta in 2015. This can sometimes be diagnosed by opening the
Based on technical analysis from compression community discussions on ENCODE.SU , this archive has the following characteristics: standard 7z archive.
It contains 2 solid blocks , a feature of 7z that concatenates multiple files into a single stream to achieve higher compression ratios. Compatibility & Extraction