CSV to Excel Converter — Free Online
Turn CSV exports into Excel workbooks you can filter, format, and share.
Quick answer
Is CSV to Excel private?
Yes. ConvertifyHub's CSV to Excel Converter is browser-based, so files never leave your device during conversion. You can convert common spreadsheet formats such as CSV, XLSX, XLS, TSVwithout creating an account, waiting in a server queue, or sending private files to a cloud converter.
Upload your files
Drag and drop files here, or click to browse
Supported File Types
Images
Documents
Audio
Video
Archives
Spreadsheets
Maximum file size: 100MB per file • All processing happens locally • Your files never leave your device
How do I convert CSV to Excel without uploading?
ConvertifyHub converts CSV to Excel (XLSX) in your browser so CRM exports, analytics dumps, and inventory lists never leave your laptop. CSV is perfect for interchange; Excel is better for formatting, pivots, and sharing with non-technical teammates. Upload a CSV, choose XLSX, and download — reverse the flow anytime with our Excel to CSV converter. No signup and no server-side storage of your rows.
Browse all formats on our Spreadsheet Converter.
Frequently Asked Questions
Will formulas appear?
CSV only stores values. You can add formulas after opening the XLSX in Excel or Sheets.
Delimiter issues?
If columns look wrong, confirm comma vs semicolon delimiters in the source export.
Is my data uploaded?
No. Spreadsheet conversion runs locally in your browser.