Image viewer - blackscreen on office 2007 .xlsm files

Good moring all.
Just found opus after many years of putting up with explorer since I changed from the amigas.
I have a small issue where in the image viewer I can view *.xls files but i cannot view *.xlsm files from office 2007.
I only get a black screen in the preview pane.
Is this something that I'm not doing right?
Thank-you for your time.

Which version of Windows?

Do you have Office installed? Which version?

My apologies.
I should have stated that as well
windows xp pro service pack 3
and office 2007 Enterpise 12.6152.5 service pack 2.
Dopus shows the *.xlsx files quite well.
I think it might be because of security settings for the macro enables *.xlsm files..
It's not a big issue a 90 percent of teh files are xlsx.
Thank-you for replying.
Gabby

Oh, I just realised .xlsm isn't in the default list of Office extensions that the Opus viewer uses.

Try going to Settings -> Preferences / Plugins / Viewers, click on the ActiveX + Preview + Office + Web plugin and click Configure, then add the .xlsm extension to it.

With Office 2007 you should have MS Office Excel listed in the Preview Handlers section at the top. Add the extension to that type first.

If that doesn't work, remove the extension from there and try adding it to the Microsoft Office line lower down.

Let me know if that works with your .xlsm files and I'll update the defaults to include the extension if it makes sense.

My appologies Leo.
I thought I had replied to this at the time.
Thankyou - your suggestion was a very easy fix to my issue.
Gabby