As long as the document contains data in the form of a table with the first
row of the table being the names of the mergefields, it can be used as a
datasource.
You cannot specifically save any file, other than a main doc, as a main doc.
So, I am not really sure what you think that you did.
If what you have is a document full of labels that you would like to convert
to a data source, then:
See "Convert Labels into Mail Merge Data File" on fellow MVP Graham Mayor's
website at:
http://www.gmayor.com/convert_labels_into_mail_merge.htm

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Hope this helps.
Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.
Doug Robbins - Word MVP
>I had a data source that got saved as a main doc, how can I change it back
>to
> a data source?
Jason - 19 Sep 2005 22:06 GMT
That's what I thought but no every time I try to open the data source as a
data source I get an error message telling me that the data source cannot be
opened because it is not a data source and something about headers
> As long as the document contains data in the form of a table with the first
> row of the table being the names of the mergefields, it can be used as a
[quoted text clipped - 14 lines]
> >to
> > a data source?
Doug Robbins - 19 Sep 2005 23:13 GMT
Well in that case, you should open it as a regular Word document and insert
a row at the top of the table into which you enter names that can serve as
the field names

Signature
Hope this helps.
Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.
Doug Robbins - Word MVP
> That's what I thought but no every time I try to open the data source as a
> data source I get an error message telling me that the data source cannot
[quoted text clipped - 24 lines]
>> >to
>> > a data source?