"OASI Daszip" appears to be a specific technical file or data package related to the or similar astronomical data archives, often used in scientific research. However, because this is a highly niche or potentially proprietary term, a "complete guide" depends on the specific software or database you are using. Based on standard technical data handling for such systems, 1. What is an OASI Daszip?
Search for the "Data Handling Manual" specific to the instrument that generated the file. oasi daszip
If the file won't open, ensure the download was completed. These files often use "checksums" to verify integrity. "OASI Daszip" appears to be a specific technical