Okay so you are on Windows 10, which means you cannot use Xcode to edit the info.plist. But you could do this.Open info.plist In any XML Editor say VSCode.
Now before any tag within the plist file, you could add the TLS options as explained below. Be careful or you will break the XML document.
Also note NSAllowsArbitraryLoads is set to false, this means TLS restrictions apply for the app but not to the domains which you will explicitly whitelist.
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<false/>
<key>NSExceptionDomains</key>
<dict>
<key>YOUR EXCEPTION DOMAIN</key>
<string></string>
</dict>
</dict>
If you want to disable all TLS restrictions just set value of NSAllowsArbitraryLoads as true, like how it is given below. Your whitelist will be ignored if there is one.
<key>NSAllowsArbitraryLoads</key>
<true/>