Unable to view .tiff files in MS Photo Editor.

Whitewater · 1 May 2008 at 13:49

Strange problem with Microsoft Photo Editor. It opens .tif files normally but will not open .tiff files due to the following error:

"Unknown File Format".

Has anyone had this problem before? I've tried Google but no luck so far.

rpstewart · 1 May 2008 at 13:53

Does Photo Editor open when you double click on a .tiff? If not then it's a file association problem, hold down shift and right click on the .tiff, pick Open With and select Photo Editor, make sure the always open with this program box is ticked.

Whitewater · 1 May 2008 at 14:02

I've done that, both .tif and .tiff used to be associated with the Windows Picture and Fax Viewer but now they both launch Photo Editor.

rpstewart · 1 May 2008 at 14:45

Is the problem with all .tiff files or just particular ones? Does it happen if you rename a working .tif to .tiff?

Whitewater · 1 May 2008 at 14:58

rpstewart said:
Is the problem with all .tiff files or just particular ones? Does it happen if you rename a working .tif to .tiff?

It's with all .tiff files. Renaming them to .tif works fine. The files are accessed from a central store through a web interface so we can't rename them (there's something like 15k images).