Hello, I have nokia lumia 810 running on windows 8 operating system. The media files which I have received through text message are not opening on my phone. Actually these files has to be opened automatically because windows 8 provides this feature as an in built feature. So is there any app available in windows store which helps me to open these files? Or else if there any special procedure should I follow these files or any settings need to be done, please let me know about them. Thank you all for your response.