I thought I wrote about this before but couldn't find it.
I have a coulmn in dataverse the stores text like: 1-5-0
When I open the CSV is the sharepoint document library it would have value like this:
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Here's how to fix it.
In the Create CSV Table action put in this expression where you have the trouble maker
concat('="', string(item()?['Your_ColumnName']), '"')
The results: