anyone used an excel database before?

im using .csv files for a database for a script that im working on along with nikolas. it makes it easier for the client to easily upload the new data to the website for the script to work with. does anyone here have experience working with these types of databases? what are the advantages and disadvantages versus say a plain text database?

Excel database? Am I missing something here?

Excel is a spreadsheet, databases is a different thing

excel spreadsheets can be used to store data similair to a text database