You have the original release version of the 2007 Microsoft Office programs installed. When you try to open a file that was saved in a prerelease version of Microsoft Office Excel 2007, Microsoft Office PowerPoint 2007, or Microsoft Office Word 2007, you may receive one of the following messages:
Message 1This file was created in a previous beta version of program 2007 and cannot be opened in this version.
Message 2This file was created in a previous beta version of program 2007. program will convert it to the most recent version of the program 2007 file format when you save the file. Before opening this file, verify that it is from a trusted source.
Message 3This workbook was created in an earlier beta version of Excel 2007, and it cannot be opened in the current version of Excel. To open the workbook, you must first open and save it in Excel 2007 Beta 2, and then you can open it in the current version of Excel.
Message 4This workbook was created in an earlier beta version of Excel 2007. Excel will convert the workbook to the most recent version of the Excel 2007 file format when you save it. Before opening this workbook, verify that it is from a trusted source.