Translate Your CSV Files Online
Effortlessly convert CSV or TSV datasets into 100+ languages while keeping every row, column, and delimiter intact. Ideal for product catalogs, exports from Google Sheets, lists, and any structured data.
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Start Translating Your CSV
Why Choose Doc2Lang for CSV Translation?
Full‑File Translation in One Click
Upload an entire CSV/TSV and translate every row at once — no copy‑and‑paste or formula juggling.
Guaranteed UTF‑8 Encoding
We output UTF‑8 by default, avoiding garbled characters in Excel, Google Sheets, or databases.
Delimiter & Structure Preservation
Whether comma‑, semicolon‑, or tab‑separated, our engine keeps the exact delimiter and column order.
Handles Large Datasets
Translate thousands of rows and multiple MBs per file with cloud‑based processing.
Flexible Pay‑As‑You‑Go Pricing
No subscriptions. Pay only for the characters translated, with a free preview on every file.
How to Translate a CSV File:
1. Upload Your CSV/TSV
Drag‑and‑drop or click Upload. We auto‑detect separators and encoding.
2. Select Source & Target Languages
Choose from 100+ language pairs. Auto‑detect source is also available.
3. Free Sample Preview
Download a partial preview (first rows) to verify accuracy before payment.
4. Download the Translated CSV
Pay only if satisfied, then get the full CSV with structure and encoding preserved.
How to Fix Garbled Characters After Download
Seeing question marks (���) or unintelligible symbols after opening your translated CSV? Don’t worry—your data is still intact. Follow the steps below to import the file as UTF‑8 so every character displays correctly.
Open in Microsoft Excel
1. Launch Excel and create a blank workbook.
2. Navigate to **Data › Get Data › From Text/CSV** (in older versions: **Data › From Text/CSV**).
3. Select your translated CSV, then in the import dialog set **File Origin = “UTF‑8”**.
4. Click **Load** (or **Transform Data › Load**) to bring the correctly encoded rows into Excel.
Open in Google Sheets
1. In Google Drive, click **New › File upload** and choose the CSV.
2. After upload, right‑click the file and select **Open with › Google Sheets**.
3. Google Sheets usually auto‑detects UTF‑8. If prompted, pick **Unicode (UTF‑8)** and confirm.
Other Editors
Editors such as VS Code, Sublime Text, or Notepad++ allow you to choose **Encoding › UTF‑8** when opening a file. After verifying the text, you can resave the CSV if desired.
Tip: Always export or save your original spreadsheet as **UTF‑8** before uploading to Doc2Lang. Consistent encoding at every step eliminates most display issues.
Best Practices for CSV Translation
Keep a Clear Header Row
Descriptive column headers improve term consistency, especially for product or technical data.
One Concept per Cell
Avoid concatenating multiple sentences in one field; it yields better context‑aware translation.
Save Source as UTF‑8
When exporting from legacy systems, ensure the original CSV is UTF‑8 to prevent mis‑decoded characters post‑translation.
Avoid Embedded Line Breaks
Line breaks inside a cell can shift rows. Use escaped newline markers (\n) if truly needed.
Frequently Asked Questions
- Which file types are supported?
- Standard .csv (comma‑, semicolon‑, or pipe‑delimited) and .tsv files. You can also export Google Sheets or Excel as CSV/TSV, then upload here.
- The translated file looks garbled in Excel — what should I do?
- Ensure you import the file as UTF‑8. In Excel: Data ▶ From Text/CSV ▶ File origin = "UTF‑8". In Google Sheets: File ▶ Import ▶ Upload ▶ Select UTF‑8.
- Is there a row or file‑size limit?
- We support up to 200 K rows or 25 MB per upload. For larger datasets, split the file and translate in parts.
- Will formulas or special characters be altered?
- CSV is plain text, so formulas are unlikely. We translate only text between delimiters and leave numeric values, dates, and symbols untouched.
- Can I preview before paying?
- Yes. A free preview (e.g., first 50 lines) is generated so you can inspect quality before purchase.
Ready to Localize Your CSV Data?
Break language barriers in seconds. Upload your CSV now and get a free preview powered by GPT‑grade AI.