You set a number value for a document property by using a Visual Basic for Applications (VBA) script on a locale. The locale uses a comma (,) character as the decimal separator in Microsoft Office 2010. In this situation, the number value is invalid, and the file cannot be saved. Additionally, you receive the following error message:
This file cannot be saved because some properties are missing or invalid
To resolve this issue, apply the following updates:
2289189 Description of the Office 2010 hotfix package (Oartconv-x-none.msp, Oart-x-none.msp, Mso-x-none.msp): September 22, 2010
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.