How to organize storage and transfer of static reports?

Question

C++ / C#

Good afternoon!
Tell me how you can store static reports on the user's PC in the minimum amount and how to organize the simplest transfer from the client to the stat data server. reports in C#
Note:
Reports can take 2-3 days to complete (more than 1000 values ​​of different types), examples are welcome.

Answer 1

Reports can be stored in a local database, such as sqlite or ms access, and transmitted over the network using WCF