how to save and open creo mechanism assembly file?

hi all... when i try to save the creo mechanism assembly file....its save but when i open again the that file...it doesn't open...sometimes opens but shows nothing ...i attached that file
give some possible solution to fix the problem...
thanks all...who are all giving answer

2 Answers

It some time happen when you change the location of files (Sub Files)

Just for one last time u do it again(assembly & mechanism) and then
Go to
FILES
SAVE AS
BACK UP (u r supposed to create a new folder before u do this step )
OK
There u go