I would like to export the time series of a single process, as the one highlighted in blue.
I tried to export the tables following the procedure proposed by Bruce Dawson.
Is-it possible to export the time-series directly from WPA? Shall I use C# and the nuget package as suggested by Bruce Dawson?

Have you tried using WPAExporter?
https://learn.microsoft.com/en-us/windows-hardware/test/wpt/exporter
To get started, you'll need to create a filter on the table data and export a profile. This process is done through the View Editor for the particular table in WPA, which offers an advanced dialog box. Inside this dialog, you'll find a 'Filter' tab where you can define your specific conditions using WPA query syntax. For more details on the syntax, refer to this link: https://learn.microsoft.com/en-us/windows-hardware/test/wpt/wpa-query-syntax. Additionally, you can find a guide on using the View Editor here: https://learn.microsoft.com/en-us/windows-hardware/test/wpt/view-editor.
Then, you can export the filtered profile via the "Profiles -> Export..." context menu. A good rule of thumb is to apply the filter with WPA first, as this will give you a clear picture of what WPA Exporter will extract from the trace.
Thanks,
Tristan