To open this, you generally need all preceding and subsequent parts (Part 1, Part 2, etc.) in the same folder. Once all parts are present, you can extract the contents using a tool like or 7-Zip by right-clicking on the first part.
Based on the naming convention often used in software sharing communities: : Corel Suite MAMSO / 2014 : Refers to the 2014 release (Version 17 / X7) 64 : 64-bit architecture
: The 11th segment of a compressed multi-part file.
The file is likely part of a split archive for CorelDRAW Suite X7 (2014) , specifically a 64-bit multi-language version.