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 styled in bold, and columns are auto-sized to fit their content.

• No option to set

  One click does everything — there's nothing to configure.

• Privacy-first

  Files are processed in memory and deleted immediately after download.

• Free & no sign-up

  No account, no credit card, no limits on the number of conversions.

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.

Are my files kept private?

Your files are processed on our servers solely to perform the conversion. They are deleted automatically once the download is complete and are never shared or stored long-term.

What is the file size limit?

Files up to 10 MB are supported.

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