The win64 suffix indicates it is built for 64-bit Windows systems. The 9 refers to the version of the Oodle library (version 9.0 or higher).
As a tech enthusiast, I came across the term "oo2core9win64dll exclusive" while exploring the depths of my computer's system files. Being intrigued, I decided to investigate further and share my findings with you. oo2core9win64dll exclusive
Search your SteamApps/common folder for oo2core_9_win64.dll . The win64 suffix indicates it is built for