Fikia

CSV to Excel Converter

Convert your CSV files to Excel format (.xlsx) instantly. Free to use in the browser, and available via API when you need automation.

No signup
Instant conversion
Privacy-first

Multiple files convert to separate sheets. Max 10 MB each.

Instant Conversion

Your files are converted in seconds after upload.

Multi-File Support

Upload multiple CSVs to create a multi-sheet Excel workbook.

Secure & Private

Files are processed on the server and immediately deleted.

API usage

Automate CSV to Excel

Use the CSV to Excel API for batch conversions and scheduled workflows.

$0.0045 / workbook /api/transform/csv_to_excel/v1

Example request

curl -X POST https://api.fikia.com/api/transform/csv_to_excel/v1 \
-H "Authorization: Bearer YOUR_API_KEY" \
-F "files[]=@sheet-1.csv" \
-F "files[]=@sheet-2.csv"
Sign up for free $10

How to Convert CSV to Excel

  1. 1
    Upload your CSV file(s) - Drag and drop or click to select your .csv files (up to 5 files, 10 MB each).
  2. 2
    Click Convert - Once all files are uploaded, click the Convert button to start the conversion.
  3. 3
    Download your Excel file - Click the download button to save your .xlsx file with all sheets.

Frequently asked questions

Can I upload multiple files?

Yes, up to 5 CSV files become separate sheets in one workbook.

Does it keep delimiters?

UTF-8 and common delimiters are preserved during conversion.

Useful when

  • Bundle raw CSV exports into one workbook for sharing.
  • Prepare stakeholder-ready reports from pipeline output files.
  • Turn machine-generated CSV data into Excel deliverables.