From the Start menu select "printers and Faxes"
Select "Add a printer"
Select "Local" printer
For the port select: FILE: (print to file)
For Manufacturer select "Generic" and for printer "Generic / Text Only"
Give the printer a name
Make this printer your default printer
On the OWS run your trend report. When the report is finished select "Item..Print" .
Because your default printer is the printer you just created, you will be prompted for a file name. Give this name with the complete path and give it the "txt" extension. eg C:\MyReport.txt