If you are looking for a specific guide contained inside such an archive, could you provide more context? For instance:
In some professional contexts, it may contain data or "long guides" for Long Range Navigation Systems (LRNS) used in international flight operations. zadachi.rar
A collection of troubleshooting steps or "tasks" for specialized software, such as Kaspersky or 1C:ERP systems . If you are looking for a specific guide