If this is related to a research paper (such as the RAR: Reversing Visual Attention Re-Sinking paper), you may be looking for supplementary code or data patches.
If you have already downloaded Parts 1 and 2, please keep the following in mind to ensure a "proper" extraction: Download patch part3 rar
In file-sharing communities, a "PROPER" tag indicates a corrected version of a previous release that had technical issues. If this is related to a research paper