InPage Question:

Probably you are actually opening a document file of some other application. In case you are sure that you are opening an InPage document, then its quite
possible that on your last save the file was not saved properly. At this juncture you have the option to open the .BAK file and retrieve your document before the last save state.
If you get the above message (from opening the .BAK file as well), then you can try retrieving only the text portion of your document (without any formatting) by importing the saved file as a text file in a new document. When you use the Import Text menu item and you get a Import Text dialog box, you should choose the file type as Text File (*.txt). This will lead to insertion of some junk characters at the beginning of the document and after 8-9 pages you will start getting Urdu/Arabic/English text. You can remove the junk characters from your document and make fresh changes to this newly retrieved document.