File Import Specifications for CDIF and SIF 2019 ...

Importing data for a section that already has data populated will overwrite the data for that section. In other words, if you want to use the import option to update one cell, or row of data, for a section that you have already imported/entered data for, you will need to include all of the data for that section, not just data for the cell/row that you are updating. ................
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