The term appears in older telegraphic "phrase codes" (like Bentley's) where four-letter cyphers were used to transmit complex data. It is possible this is a niche technical archive from a site like Internet Archive .
The terms "Sak," "Nab," and "Zip" (or "Sip") are frequently found together in academic papers discussing the . Sak (Zac): The 11th month of the Haab' calendar. Zip (Sip): The 3rd month of the Haab' calendar. Download Sak nab zip
Could you clarify or what type of software you were expecting to download? Frontu | Samsung Knox The term appears in older telegraphic "phrase codes"