Insert a new column A and put this formula in A1:
=B1&C1&D1&E1&F1&G1&H1&I1&J1&K1
and copy down to A10. You might like to separate the fields (eg with
the pipe character), so you could have:
=B1&"|"&C1&"|"&D1&"|"&E1&"|"&F1&"|"&G1&"|"&H1&"|"&I1&"|"&J1&"|"&K1
If you have numeric data in some of the fields you might like to use
the TEXT function to control how many characters the number is
represented as.
Highlight A1:A10, click <copy>, then Edit | Paste Special | Values
(check) | OK then <Enter> in order to fix the values, then you can
delete your original data in B1:K10.
Hope this helps.
Pete