Fix: POSSIBLE DATA LOSS: Some features might be lost if you save this workbook in the comma-delimited (csv) format. To preserve these features - save it in an Excel file format

When you work with .csv files in Microsoft Excel on a Windows PC, you will see a message "POSSIBLE DATA LOSS", this is because, CSV is a plain text format and doesn't support advanced formatting, formulas, multiple sheets, or other Excel-specific features.

There are two things that you can do here.

Fix 1: You can save the file as .xlsx or .xls instead to .csv

Fix 2: If you do not expect to have any formatting or formulas in your CSV file then you can ignore this message.

How to remove "POSSIBLE DATA LOSS" Warning

1. Go to File.
2. Select Options.
3. Now go to Save from sidebar.
4. Uncheck - "Show data loss warning when editing comma delimited files"
5. Click OK