How to analyze an app's IPS file in Xcode?

If you have dysm file of your app version which got crash, you can symbolicate it using atos tool with the steps mentioned in Apple documentation

For additional info, I opened Organiser, selected Download dSYMs, then went to Devices > View Error Logs, imported the IPS file into it (by drag and dropping). Then I right clicked the relevant crash and selected re-symbolicate.

If your IPS files dont simply drag into the crash view, rename them to .crash, then back again to IPS.