You need to activate the display of hidden files and folder on windows: 

Windows 10 

• In the search box on the taskbar, type folder, and then select Show hidden files and folders from the search results.
• Under Advanced settings, select Show hidden files, folders, and drives, and then select OK.

Windows 8.1 

1. Swipe in from the right edge of the screen, then select Search (or if you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then select Search).
2. Type folder in the search box, then select Folder Options from the search results.
3. Select the View tab.
4. Under Advanced settings, select Show hidden files, folders, and drives, and then select OK.

Windows 7 

1. Select the Start button, then select Control Panel > Appearance and Personalization.
2. Select Folder Options, then select the View tab.
3. Under Advanced settings, select Show hidden files, folders, and drives, and then select OK.
   

You can now see the hidden files of your racket:

NB: 

• The "LOG00X.BIN" files are the sessions 
• The "USERPAR.INF" file is, as it were, the ID card of your card