"Anders" wrote in message
...
As far as I know, they are about 1.3 MB. The problems occur with or
without
marcos, I do notknow about the add ins.

Thanks.

1.3 MB isn't much, not even for xl97. Have these files been manually created
and then sent to various people within your organisation? Things that often
seem to trigger various bugs within Excel are formatting and pivot tables.
The more you use "fancy" things, the more likely it is that you will get
problems.

/Fredrik