It depends on the type of chips in the collection. Some chips can be very valuable. On the other hand, recent "Limited Edition" chips issued in the last 10-15 years or so may only be worth face value ... or even less.

I'll take a look at your spreadsheet if you email it to me. Offer advise (free) if possible.

I'm not a dealer, so not personally interested in acquiring, but may be able to suggest a game plan for you.

Good luck.