How to back up my text messages from my iphone?

I have the Iphone4 with the ios7 update. I just want to put my text messages onto my PC. I have already backed up my phone onto my computer through iTunes and I have also found the files that contain the texts. I just need to know how to read them.

When backed up to your computer the file should be at (in Windows I'm presuming): OS hard drive > Users > [your username] > AppData > Roaming > Apple Computer > MobileSync > Backup.

With this file go to http://www.iphone-sms.com/ where you can upload your file and choose to export it to Microsoft Office Excel, HTML or PDF. Once the file has been uploaded and exported, you will be able to view all the SMS's you sent.

If this is not compatible with ios7 then you might need something like this http://www.backuptrans.com/iphone-sms-backup-restore.html

You can try to find an app that can output the text messages as.txt file, then you can read it.