I can't open a file in OS 922 that was created in OS X.

Question

The web-pages I downloaded while in OS X (and stored in the HD) appear blank, (white, no logo) when I am booted in OS 922. When I try to open them, I receive a message "Sorry, could not open because the application that created it could not be found".
So OS 922 cannot find an application (in this case do they mean Safari or OSX ?) that created the file. Sounds logical since OS X didn't exist when OS 922 was created. And Safari neither I think (if that plays any role)
Question: does the Internet connection (Internet Explorer vs. Safari play any role ?)
I have no problem whatsoever with files downloaded with Internet Explorer (5.1.6 or previous versions I had). Or from OS 9.0.4 to 9.2.2.
Nor do I with photos (even with Safari and OS X) .
Only web-pages and documents (including TextEdit) done with OS X. And not all files but half of them.
G4   Mac OS X (10.4.7)  

Answer 1

Hi, I need -
OS 9's Finder uses File Type and Creator codes embedded in files to determine how the file should be handled - what program to use to open it, and how that program should process the file.
OSX uses filename extensions rather than File Type and Creator codes.
As a result, it is not uncommon for a file created in an OSX environment to be displayed as a generic unknown-type document when the machine is booted to OS 9; and for Finder to not know how to handle it when it is double-clicked.
If you know that a certain program in OS 9 should be able to open a file, try dropping that file onto the icon for that program (or on an alias to that program) - some programs are capable of trying to open a file done that way; others won't even try.
In most cases, a file created by an OSX app will not be openable by an OS 9 app - this is understandable, given that newer programs often use more advanced formats than older ones, even versions of the same program.
If you know that you will be transporting a file from OSX to OS 9, try saving it in a form accessible by OS 9 - many programs will offer a list of alternate file formats when you do a Save As of the file, or (in some cases) an Export of it.
Question: does the Internet connection (Internet Explorer vs. Safari play any role ?)
It certainly can. If Safari saves a file in a proprietary format, then IE will probably not be able to open it. However, a file saved in plain html should be openable by most any browser.
You might experiment with the settings in OS 9's File Exchange control panel, particularly the ones listed under PC Exchange. Adjusting some of these, or creating new linkages, may allow OS 9 to handle files which are openable by your OS 9 programs, but which are not identifiable by Finder.