Why not use a published data source (if the data is shared between workbooks) or a packaged workbook (if the data is not shared) ?
Tableau does allow for data storage, from memory you get 10GB with a Tableau Online account.
BUT .... yes, a "more robust" database solution would be better, but that would also take time & money to setup. I'm happy to discuss options if you want more info
Many thanks for the reply. I'll look into published sources and packaged workbooks (I'm very new to Tableau). Our use case is that we get new data every week in Excel, but we want to store it cumulatively (so we can do analysis over time), so we are trying to figure out a way to just add/append new data to a common repository without having to email files back and forth (like I imagine we'd have to do with a packaged workbook). We have users in a handful of locations, so unfortunately we aren't all in the same office (so a shared drive isn't an easy option, though as I say that, maybe something like Dropbox would give us what we need). I'll also look into the Tableau storage. Thanks again!
Where are you based ? (country/timezone ?)
I might have a simple, low-cost solution that could help
I am in South Carolina US, and we have some users in Georgia US. We may add users who could be anywhere in the US, but for now I'd say we are mostly eastern time United States.
I'd recommend Snowflake - it's very cost-effective, you only pay for the time you use it where most other vendors you pay just to have the system running.
Snowflake also allows for a 30 day trial so you can test if it's the right thing for you.
I'd be happy to help you with this solution, but it would be off-topic in this forum. My contact details are in my profile if you want to get in touch to talk more - even if it's just to test as a trial