It is in .doc format having been created using Word 97.
Your profile says Word 2007 (never a fine program, in my opinion).
Which are you using?

How did the text get on alternate pages?
Could you perhaps share about ten pages here so we can actually look at what was done?

• Attach a Sample File Demonstrating the Problem - Here's How
• Word Doesn't Know What a Page Is by Daiya Mitchell, MVP
• Moving/Reorganizing Pages in Microsoft Word