old .ggb files do not open

henrip shared this question 4 months ago
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Old .ggb files no longer open. Here is an example. Anyone know what to do?

Comments (7)

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Try this - file was corrupted (slightly)

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Thanks!

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?

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Please post a few more

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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.)

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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)

 <graphics/Settings javaLatexFonts="false"/>

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Wow, thanks! I didn't know .ggb files could be unzipped.

How do I avoid this issue in the future?

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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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