Welcome to SolidWorks forums Robert .
The files seems to be corrupt and the ways to fix them is either make a new one/look for a backup copy OR send them to SolidWorks technical team to fix it. I'm not sure as how school or student can approach SW tech team but try sending an email to Jeremy Harrington if he can do something to help you/your daughter out.
BTW the corruption of the file is nothing to do with her laptop.
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