When I rename the file to .zip it still opens with excel. is there a trick to
doing this? If you open it with notepad every thing is jumbled.

"Nick Hodge" wrote:

Eric

The beauty of the new file format is that you can take a copy, rename the
extension to *.zip and see the text content of the file. It's not
necessarily for the novice, but with care you should be able to correct the
issue internally or delete just the 'component' causing the issue

There is some basic detail here

http://www.nickhodge.co.uk/2007files/fileformat.htm

But if you want to email me the file I'll take a look

--
HTH
Nick Hodge
Microsoft MVP - Excel
Southampton, England
DTHIS
web: www.nickhodge.co.uk
blog (non-tech): www.nickhodge.co.uk/blog/
"Eric" wrote in message
...
Sorry I forgot to mention that. I renamed it to 'Test' with no change.

"Nick Hodge" wrote:

Eric

I would try taking all the periods out of the file name, I would be
surprised if XL would have an idea of the extension with them

--
HTH
Nick Hodge
Microsoft MVP - Excel
Southampton, England
DTHIS
web: www.nickhodge.co.uk
blog (non-tech): www.nickhodge.co.uk/blog/
"Eric" wrote in message
...
I have office 2007. Today I opened a templete made some changes and
saved
it
with an updated name. Now every time I try to open the file I get the
message
"Excel cannot open the file 'Estimator 5.22.07.xltm' because the file
format
of file extension is not valid. Verify that the file has not been
corrupted
and that the file extension matches the format of the file." I can
still
opent the older file 'Estimator 5.10.07.xltm' What gives? I only chaged
some
values, very basic changes. The only thing I can think of is that my
computer
ran Automatic update and did update 1 thing. Also, this is the second
time
I
have made these changes and resaved with the same results.