HAR Format
HAR is well established for exporting the network communication of a browser.
Data collected via webQsee can be easily exported to HAR (only network communication), Excel (including console events) BAR (a format introduced by webQsee combining the content of the HAR and Excel export with some additional information).
A detailed comparison of the various export formats is available via https://webqsee.com/feature-matrix/event-snapshot.html#esa-vs-har.
While DevTools always exports all network requests into the HAR file (https://developer.chrome.com/docs/devtools/network/reference/#save-as-har), webQsee allows you to export just the requests you're interrested in.