Use WinRAR or 7-Zip to right-click the .rar file and select "Extract Here" or "Extract to...".
The contents of such an archive are usually one of the following: Download TCT rar
Place tactical files in the relevant game directory to load custom strategies. Use WinRAR or 7-Zip to right-click the
Once extracted, open the file using its native application: TurboCAD: For template files. Topocad: For CAD and GIS mapping files. Download TCT rar