Hello Racheld,
Sorry for the delayed response and inconvenience caused. AS per the description above, Adobe Reader is crashing while you are exporting a PDF file to Word or Excel, is that correct?
The record shows that you have an active subscription of Adobe ExportPDF with your current Adobe ID, try exporting the PDF through the URL https://cloud.acrobat.com/exportpdf with your Adobe ID and password on a browser like Chrome, or Firefox, or Safari.
Please check for any pending updates of Adobe Reader from help>check for updates, reboot the machine after installing the updates and try exporting the PDF file.
You can also refer and try the suggestions from the following Adobe article Resolve Acrobat DC intermittent crashes on Windows
You can also refer to Troubleshooting Create PDF, Export PDF, Adobe Send, Fill & Sign … services(PDFPack or Document Cloud Services).
Let us know how it goes and share your findings.
Regards,
Anand Sri.