You can transfer files to and from VLC (and other supported apps) using Finder or iTunes.
MacOS Finder (macOS Catalina and later)
Connect your iPad by cable or same Wi-fi* network.
Open Finder and select your device the sidebar.
Go to Files section in the window.
Look for VLC in the list: Drag and drop the file on VLC to transfer it.
iTunes (macOS Mojave ...
One option is to do the following:
On your iPad launch the VLC app
Tap on the Network option
Enable the Sharing via WiFi option
This should present you with at least two http URL addresses
On your laptop, open your preferred web browser (Safari, etc)
Enter one of the URL addresses (NOTE: I find the numbered address is much more reliable than the one using ...