1. To open F3KScore program double click the executable file "f3kscore.exe" in this directory. Note, if your Windows Explorer folders are configured to not show file extensions, you will see only "f3kscore" as the file name. It is the file with the blue and white airplane icon.

2. For quick access, create a shortcut for the executable file on your Desktop. Right click on file "f3kscore.exe", select "Create Shortcut".

3. The program is configured to read and write competition data files with extension ".f3k". 

4. Once you open the program for the first time, create at least one ".f3k" file, even with no competition data. Then you can associate this file extension with the F3KScore program using the "Open With" functionality of MS Windows. Right click on your ".f3k" file, click Open, click "Select Program from a List", then browse to the executable file "f3kscore.exe", check the option "Always use the selected program to open this kind of file", click OK. From this point on, you can simply double click on your ".f3k" files and Windows will invoke F3KScore to open your file.