With the introduction of Office 2007, Microsoft abandoned the age-old .doc format in favor of the newer .docx (also known as the Office Open XML format). If you're still using Word 2003 or an earlier version of the program (and many people are), you won't be able to open .docx files without a little assistance. Likewise, the venerable .xls Excel spreadsheet format gave way to .xlsx, and PowerPoint .ppt files became .pptx files. Anyone using Office 2007 or Office 2010 is generating these kinds of files, which older versions of the Office applications can't read.

If you use MS Office version older than Office 2007, then download compatibility pack for Office software installed on your computer. After installation, you can open Word 2010 documents that were saved in .docx and .docm formats. Please note, you cannot open Word 2010 template files that were saved in .dotx or .dotm format.

Open Office 2007 and 2010 file with MS Office 2003

1. Download the Microsoft Office Compatibility Pack from the Microsoft Download Center.

2. Close any Microsoft Office 2003 applications that are running.

3. Double-click on the Compatibility Pack installer to begin the installation process. Click ¡°Next¡± to navigate through the setup wizard. When prompted, accept the license agreement terms and point the installer to the directory on your computer where Office 2003 is installed.

4. Click ¡°Finish¡± to close the setup wizard when the installation of the Compatibility Pack has been installed.

5. Open an Office 2007 document with Office 2003 to confirm that the Compatibility Pack installed properly.

How to Open Office 2007 /2010 Password Instantly

In order to keep your data or file in security, we often need to password protected the MS Office files or documents. However, sometimes we can not open the password as its long characters or other reasons. Then what can be an easier and faster way to open or recover Office password on MS Office 2007/2010?

Tip1 : To recover Excel 2007 password and its previews version, you can try with Excel Password Unlocker, Office Password Unlocker.

Tip2: To recover Word 2007 password and its previews version, you can download Word Password Unlocker or Office Password Unlocker.

Tip3: To recover Excel or Word password for MS Office 2003 and its previews version, you can have a try with Office Password Breaker except the above ones.

http://www.passwordunlocker.com/word-password-recovery.html