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      <title>Expression Names</title>
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      <div class="title_topic4" id="xps10_pagetitle">Expression Names</div>
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      <p class="para_topic"> To define the NX expression names, shown in column A of the Column-wise Data Layout Example, you can:</p>
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            <p class="para_item"> Type them in manually - one name per cell</p>
            <p class="para_item"> Or</p>
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            <p class="para_item"> Import them from an external source</p>
            <p class="para_item"> Or</p>
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            <p class="para_item"> Select the Tools&rarr;Extract Expr option. This operation extracts all of the expression names and formula values of the active part into two columns or rows using the active cell as the beginning location. In the Column-wise Data Layout Example figure, Extract Expr would create the contents of columns A and B automatically. You may then modify this list leaving only the key names and expressions.</p>
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