On what to release the plan?

Question

Java

Good afternoon. Please tell me by what means to implement the following:
There are excel files with data, they need to be uploaded to a common database and then, on the basis of this, to receive samples in various forms.
There are restrictions on the computer, nothing can be installed. There are jvm and ms office. I have some experience with javaFx and the poi library. Which database can be used locally without installation and that can be transferred to another computer

Answer 1

sqlite database, without installation, but the Internet or, at worst, access to usb is needed.
exel can be parsed through apache poi, but in order to pull up this dependency, you need either the Internet or usb (here is an example devcolibri.com/1716)
if everything is bad with the Internet and there is no usb, you can pull the data into a plain text file and parse it
another option www.sql.ru /articles/publications.shtml#14 look at point 14

Answer 2

Which database can be used locally without installation and that can be transferred to another computer

As the previous speaker has already voiced - SQLite and you can still use Firebird embedded .
Drivers for working with both Firebird and SQLite, I'm more than sure - there are also in Java, incl.

Answer 3

To make the program fully portable, we take
https://github.com/tfussell/xlnt
+
https://github.com/SqliteModernCpp/sqlite_modern_cpp