Question 1

How do I convert CSV to XLSX?

Accepted Answer

Paste your CSV data into the input area above, or upload a file. Select CSV as the input format and XLSX as the output format, then click Convert. Your converted XLSX output will appear instantly. You can customize the output using format-specific options like delimiters, pretty-printing, and more.

Question 2

What options are available for CSV to XLSX conversion?

Accepted Answer

Standard conversion options are available including format detection and preview.

Question 3

Can I process large CSV files safely?

Accepted Answer

Yes. Free accounts support files up to 10 MB. Paid plans support files up to 250 MB with async processing and webhook notifications when the job completes. Your data is processed securely and not stored after conversion.

Question 4

Can I automate CSV to XLSX with API access?

Accepted Answer

Absolutely. The Converter Platform REST API lets you automate conversions with API keys, batch jobs, and idempotent requests. See the API documentation for curl examples and endpoint details. API access is available on the API plan and above.

Option	Description	Values
`delimiter`	CSV field delimiter	comma, semicolon, pipe
`sheet_name`	Output sheet name	string (default: Sheet1)

Convert CSV to XLSX

CSV to XLSX Options

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