Trend with Historian server name change

You should be able to open the .aaTrend files with Notepad, and Search/Replace the OldServerName with the NewServerName

Hi Christophe, I tried that but opens with a jumble of characters. Did a search but doesn't find the server name unfortunately.

I believe the .aaTrend files were encrypted with v 2020.x of Historian Client.What you can do is open these files with the latest version of Trend, even if they hang for a minute or two. Then you save them, and open the files with Notepad. They are not encrypted any more.

I believe the .aaTrend files were encrypted with v 2020.x of Historian Client.What you can do is open these files with the latest version of Trend, even if they hang for a minute or two. Then you save them, and open the files with Notepad. They are not encrypted any more.