Is it possible to Data merge into existing text

[Michael24395579jie2]

I have a long document with a table and 3 columns of information (product code, description and pack size). We need to have the descriptions replaced with translated text but keep the other 2 columns the same.

I have a CSV file with similar data but the descriptions are in French.

Is it possible to use Data Merge to "tag" the code field as the identifier and tag the description field so that it updates with the French translated text from an CSV file?

[Robert at ID-Tasker]

If that's a single table and after translation order of the rows won't change - you can just copy&paste new contents to the 1st column. 

Otherwise - custom script. 

Or, if it hasn't been translated yet - you can copy this table to a new document, export as IDML, send this IDML for translation - with a note that only 1st column should be translated - and then just replace whole table.