I have ID CS5, and I downloaded the trial version of CS6. I then subsequently wrote content in CS6, and since the trial expired I now have an .indd file that can not be opened. Are there any online viewers that I would be able to open and retrieve the text information?
No. You need to find someone who has a copy of CS6 who can save out an IDML file so you can open it in CS5.
If I can help you out, let me know. I can open it and send you the IDML.
That would be terrific. Thanks! I will PM you the file then.