A customer has sent me a csv file which contains two sheets when opened in
Excel 2000. This was done because the first sheet contained the maximum
number of records Excel can handle. I need to import these lists into
Paradox (a database), so I need to separate the two sheets into separate
files, each saved as its own csv.

In one of the columns, I've got long strings of data as shown below. These
are UPC codes, and will never be used as numbers - just text.

10323900002958
10323900002965
16500505693
10323900005409
10323900006147
10015400022436

When I separate the two sheets into their own notebooks, and save as csv
files with new names, a problem arises. When I either import the data into
Paradox, or reopen the sheets in Excel, I find that this is what's happened
to the list shown above:

1.03239E+13
1.03239E+13
16500505693
1.03239E+13
1.03239E+13
1.00154E+13

The shortest value is untouched, but the rest convert to exponent format.
So, I figured Excel was seeing these as numbers. I opened a new sheet,
formatted all cells as text, and tried copying the data to that sheet, using
Paste Special / Values. Same problem. I'm am definitely choosing the right
file type before doing the Save As.

Even stranger: If I view the new csv file in a text editor like WinEdit,
these strings look fine.

Help!