CSV to Excel
Convert CSV files to Excel (XLSX)
What is CSV to Excel?
CSV to Excel is a free online file converter from Farvixo that lets you convert CSV files to Excel (XLSX). Conversion runs in your browser rather than on a server, so files are never uploaded and there is no queue to wait in. No watermark, no size cap and no account — convert as often as you need.
How to use CSV to Excel
Drop your file into CSV to Excel. Conversion runs in your browser, so nothing is uploaded.
Pick the format you need. CSV to Excel keeps formatting, layout and quality intact rather than flattening the document.
Save the result immediately. No watermark, no file-size cap and no waiting in a queue.
Frequently Asked Questions
Why does opening a CSV directly in Excel mangle my data?
Excel guesses. It strips leading zeros from postcodes and IDs, reinterprets things that look like dates, and converts long numbers to scientific notation. Converting properly writes typed cells instead of leaving Excel to guess.
My non-English characters became question marks. Why?
The CSV was not saved as UTF-8, or Excel opened it assuming a regional encoding. Re-save the source as UTF-8 and convert again — this tool reads and writes UTF-8 throughout.
What if my CSV uses semicolons instead of commas?
That is standard in several European locales, where the comma is the decimal separator. The delimiter is detected automatically, and you can override it if the detection guesses wrong.
Are numbers and dates preserved as real values?
Yes — they are written as typed cells, not text, so sorting, totals and formulas work immediately. Dates are the most fragile part of any spreadsheet conversion, so spot-check a few.
Can I convert several CSVs at once?
Yes. Convert a batch in one pass and download them together, which saves repeating the delimiter and encoding settings for each file.
What you can use CSV to Excel for
- Opening a file in software that does not support the original format
- Preparing data for an import that accepts only one specific format
- Converting a confidential document without uploading it to a converter site
- Batch-converting a folder of files in one pass
CSV to Excel at a glance
- Tool
- CSV to Excel — File Converter Tools
- Purpose
- Convert CSV files to Excel (XLSX)
- Input
- A single file (CSV)
- Output
- A converted file in the format you selected
- Processing
- In your browser — files are never uploaded to a server
- Price
- Free, unlimited, no account required
- Limitations
- Bounded by your device's memory and CPU rather than a server quota; very large files may be slow on older hardware
Tips for better results
- Conversion between structurally different formats is approximate. Check the output before relying on it.
- Keep the original file. A converted copy has already lost whatever the target format cannot represent.
- For spreadsheets, confirm number and date formats survived — those are what usually break.
Common problems and how to fix them
Formatting shifted after conversion
The target format cannot represent every feature of the source. Simplify complex layouts before converting.
The file is rejected as unsupported
The extension may not match the actual content. Open it in its native application and re-save it properly.
Non-English text became question marks
An encoding mismatch. Ensure the source is saved as UTF-8 before converting.
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