CSV to Excel
Turn CSV or TSV into Excel XLSX with delimiter and encoding options. Preserve leading zeroes and formula-like text.
Choose CSV or TSV and its original encoding. Detect the delimiter automatically or set it yourself. Convert and review the preview.
Result
Enter your data and run the tool. Your result will appear here.
The values you enter stay on this page. Reloading or closing it clears them.
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How to use this tool
Choose CSV or TSV and its original encoding. Detect the delimiter automatically or set it yourself. Convert and review the preview.
Method and quality
Every cell is written as text to preserve identifiers, leading zeroes and long numbers. Strings starting with = are not formulas. Quoted delimiters and multiline values are respected.
Practical example
The code 00123 stays 00123 in Excel. The text =1+1 remains text and is not calculated.
Formats and limits
Up to 100 MB, 100,000 rows, 1000 columns and 1,000,000 cells. UTF-8, UTF-16 LE and Windows-1252 encodings. Convert cells explicitly in Excel if you need numerical calculations afterwards.
Frequently asked questions
Are leading zeroes and formula-like strings preserved?
The code 00123 stays 00123 in Excel. The text =1+1 remains text and is not calculated.
Which CSV encodings are supported?
Up to 100 MB, 100,000 rows, 1000 columns and 1,000,000 cells. UTF-8, UTF-16 LE and Windows-1252 encodings. Convert cells explicitly in Excel if you need numerical calculations afterwards.