If you're not showing all 71 of those columns, then you may want to look at
excel's built in version:
Data|Form (in xl2003 menus)
If that's not enough...
You could look at John Walkenbach's enhanced data form:
http://j-walk.com/ss/dataform/index.htm
The source code is available for a small fee ($20 USA, IIRC). So you can modify
it as much as you want.
And if you want to design your own:
Debra Dalgleish shares some tips:
http://contextures.com/xlUserForm01.html
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Personally, I like to do my data entry directly into the worksheet itself. I
find that I can use data|Filter|autofilter and show/hide what I want. I can
sort the way I like.
I can enter a value into multiple cells at once. I can drag values. I can hide
columns that I don't want to see.