[Bug 20950] New: Excel 2007 changes .xls modification date on shutdown

http://bugs.winehq.org/show_bug.cgi?id=20950

Summary: Excel 2007 changes .xls modification date on shutdown
           Product: Wine
           Version: 1.1.34
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Test:
Launch Office 2007 Excel and save an empty .xlsx file.
Close Excel, right click on the newly created file and choose properties.
Observe the modification and access dates of the file.
Open the .xlsx file with Excel 2007.
Close Excel and look, the dates are the same. Awesome.

Now do the same with a .xls file.
Launch Office 2007 Excel and save an empty .xls file.
Close Excel, right click on the newly created file and choose properties.
Observe the modification and access dates of the file.
Open the .xls file with Excel 2007.

It doesn't matter now if you just read the document and then shutdown Excel or
if you edit the document but you DON'T save the changes when Excel shuts down.
However, when you close Excel the file will get new modification and access
dates.

What would have happened:
Excel would respect the date of modification when no editing is done in .xls
JUST the way it does with .xlsx. This affects only Excel, while Word respects
the date with both .doc and .docx and Powerpoint with .ppt and .pptx.

Can anyone else reproduce this?