S-2, Part I-II External Values
Select a tab to toggle between Worksheet S-2, Part I and Part II. Please note on the S-2 Pt I tab, there is an option to toggle between Columns 1-3 and 4-6, which allows input values for Lines 24, 25, and 67. The values present in this section are values that are expected to be updated each year. The other values will flow from the prior year mcrx file if a template is used. Please see the following article, which documents creating a new mcrx file.
Note that for any column or line that allows for input, the option to link an uploaded Source Document is available by clicking the Attach Source Document button 
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More Resources
For more information on the mechanics of external values, please see the following article: External Values