That is not what it was made for. It was made to do shenanigans with values like doing math on them and plotting graphs. If you merely want data storage, use a table. I agree, a database is overkill for most things, but that doesn't change the fact that Excel is the wrong tool for the job. Maybe if they added a table mode where it's basically just a frontend for a csv it'd work, but right now I'd still say it's better to use a scalpel than a hammer, even if scissors do the trick just fine.