you're saying "I even have downloaded some stuff from the internet that are .zip data". ignore approximately Safari and bypass directly to between the data. examine the size of the report. Is it the perfect option in accordance to the size shown on the unique internet internet site? If not, this is incomplete and could't be used in any respect. Trash it and receive back. If the size seems the comparable as a results of fact the unique, perfect-click (selection-click) the report and spot what's set for the "open with" application. The default for OS 10.3 and 10.4 is "BOMArchiveHelper". In OS 10.5 this is "Archive application". whether it is not set for the the perfect option application, exchange it by utilising identifying on "different..." on the backside of the checklist. Navagate to the default decompression application. this is located in /device /Library /CoreServices /Archive application.app in 10.5, and /device /Library /CoreServices /BOMArchiveHelper.app in 10.4 and 10.3. If this would not artwork, try repairing permissions, restart, and set the "Open with" to the default. If the downloads look incomplete, try downloading back, and at a time whilst the site visitors is way less, which incorporate early morning.