seems to be plenty of info available on Google:
https://www.certumsolutions.com/blog/q2f8e55444gln2ofn3fshzaiafoiur-yfacl-p8...
https://www.askforaccounting.com/is-your-quickbooks-file-too-large-in-size-t...
but the first step seems to be to back-up (!) and then compress the files (Surprise!) - some suggest that speed is the main problem - well you can now get humongous SSD's
AndyD
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