WEBARCHIVE, Safari Web Archive (.webarchive)
The WEBARCHIVE Website file format
Technical details of WEBARCHIVE files
Not every web browser is able to open and display WEBARCHIVE files. Naturally, Apple’s Safari is one of them as well as Cruz and iCab, both available for Mac OS X. The text editor Apple TextEdit can also open WEBARCHIVE files, however the content might look distorted or might not be displayed correctly in these cases.