Improper use of Excel, yet again
For the millionth time, this is a spreadsheet analysis tool, not a Relational Database Management system.
This article reads like "All the bus passengers are complaining about the lack of room on my scooter!"
Besides that, you can select an entire column in Excel and format the cell to a specific type of data (like TEXT data, instead of letting Excel assume a date type).
Leave it up to scientist to fail basic spreadsheet training. ;-)