CSV and Excel files can both contain tabular data, but they are designed for different workflows. CSV is plain text and highly portable, while Excel formats can support richer spreadsheet features.
When to convert CSV to Excel
Convert CSV when you want the data in a spreadsheet-oriented file for easier handling in compatible applications. Use the CSV to Excel Converter.
When to convert Excel to CSV
CSV is useful for imports, exports and systems that expect simple tabular text. Use the Excel to CSV Converter when a CSV file is required.
Inspect and clean CSV data
Before importing CSV elsewhere, review it with the CSV Viewer and clean problematic data using the CSV Cleaner.