Convert CSV to Excel Online

FloxerFile turns your plain CSV file into a properly formatted Excel spreadsheet — headers styled in bold, columns auto-sized to fit their content. No more manually importing and reformatting CSV data in Excel.

How it works

1. 1

   Upload your CSV file

   Drag and drop your .csv file, or click to browse. Files up to 10 MB are supported.

2. 2

   Convert

   Click Convert to Excel. FloxerFile parses your CSV and builds a formatted spreadsheet.

3. 3

   Download your Excel file

   Download the resulting .xlsx file, ready to open and edit.

Features

• Formatted output

  The header row is bolded with a light gray background, so the result looks intentional, not raw.

• Auto-sized columns

  Column widths adjust to their widest value, capped at 60 characters, instead of Excel's default fixed width.

• Numbers stay numbers

  Numeric-looking values are typed as real numbers, not text, so sorting and formulas work immediately without a manual convert step.

• Single worksheet output

  Your CSV becomes one clean "Sheet1" — no extra tabs or metadata to clean up.

Supported formats

Output format: .xlsx

Frequently asked questions

Will number formatting or data types be detected?

Numeric-looking values are stored as numbers, and everything else as text — the same way Excel itself interprets a CSV import.

Can I sort and calculate right away?

Yes. Since numeric-looking values are stored as real numbers rather than text, sorting, filtering, and formulas work immediately — no manual text-to-number conversion needed in Excel.

What is the file size limit?

Files up to 10 MB are supported.

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