Dunno how to check catia file version?
Here the solution!
1)Open the Catia file (by notepad ) with right click the click on
“Open With” -> “Choose program” -> uncheck the “Always use the selected program to open this kind of file” -> then select “Notepad” -> click “OK”
2)Then the folder will open with notepad.
3)By using “Ctrl +F” search the word “lastsaveversion”
Enjoy when using Catia with different version……