There's an even easier way in 2025! Look for your first field in the XML with the issue and add an apostrophe to the data, then save. Bring that file into excel via Dev>Import as normal and it should work! Your first line will the apostrophe in front of the numbers but the rest of the lines will be read as a string! And when you Import again over it, it imports correctly. None of the above workarounds needed!

Example:

Change <SubmissionId>95834620250281987358</SubmissionId> to <SubmissionId>'95834620250281987358</SubmissionId>