Old .ggb files no longer open. Here is an example. Anyone know what to do?
Try this - file was corrupted (slightly)
Unfortunately, I don't think this is specific to just this file. All (or at least many) of my .ggb files from 2017 and earlier will not open. Is there a way for an amateur like myself to address the problem?
Please post a few more
Well, it's not all or even most of my old files that won't open, but it's a lot of them. Here are the ones from my website that were not applets. (The ones that were applets I was able to rescue after I got some help.)
They do all seem to have the same problem, strange!
You need to remove this line from geogebra.xml (once you've unzipped the .ggb file)
Wow, thanks! I didn't know .ggb files could be unzipped.
How do I avoid this issue in the future?
Make backups? They seem to have been saved from a variety of different GeoGebra versions so the most likely explanation is that something has done some sort of strange "search and replace" on them, maybe on 27th Aug 2017
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