In an SSIS package that I\'m writing, I have a CSV file as a source. On the Connection Manager General page, it has 65001
as the Code page (I was testing something)
If it's a csv file, you can still use code page 1252 to process it. When you open the flat file connection manager it shows you the code page for the file, but you don't need to save that setting. If you have other changes to make in the connection manager, change the code page back to 1252 before you save the changes. It will process fine if there are no unicode characters in the file.