The commands PRinTer.FILE and WinPrint can be used to print a TRACE32 window into a file.
The /Append option of the PRinTer.FILE command can be used to append new data to the existing file. Without /Append, file contents are overwritten if the file already exists.

Examples:

PRinTer.FILE output.txt /Append
WinPrint.Trace.List
WinPrint.Data.dump 0--0xfff

PRinTer.FILE file01.html XHTML
WinPrint.List.Mix func7--func17

Please refer for more information to the PowerView Command Reference.