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CSV Viewer

Opens CSV and TSV files online as searchable, scrollable tables. It is for inspecting data files without importing them into a spreadsheet first.

Processing

Runs in your browser. The file and result are not sent to Utilio servers.

How Utilio handles dataWhy files stay on your devicePrivacy Policy

CSV Viewer

Preview CSV and TSV exports as searchable, scrollable tables.

Preview

What to open next

Related tools and guides for the same job.

DOCX ViewerOpen a DOCX or Word attachment online on a shared or lightweight device.XLSX ViewerUse CSV Viewer for CSV or TSV exports.VCF ViewerPreview a VCF attachment before adding contacts.PPTX ViewerOpen a PPTX presentation online and review slide text from an attachment.PDF to ExcelMove a simple PDF report into spreadsheet rows for sorting.JSON File ViewerOpen exported API data, configs, fixtures, or logs.

Helpful guides

Read more about this task, privacy, and common limits.

How to View CSV Files in Your BrowserOpen guide

What CSV Viewer does

Use CSV Viewer when you need to open a CSV file online before importing exported leads, orders, logs, or reports.

When to use it

  • Open a CSV file online before importing exported leads, orders, logs, or reports.
  • Search large CSV files for a value or row.
  • Check delimiter and column issues before sending a file onward.

How to use it

  1. Choose a CSV or TSV file.
  2. Use search to narrow rows and scan columns.
  3. Confirm row count and sample values before using the data.

What to check

  • Quoted delimiters and unusual encodings can affect preview.
  • For edits and formulas, open the file in a spreadsheet app after inspection.

Data, formats, and limits

What stays on your device and what is sent

Runs in your browser. The file and result are not sent to Utilio servers.

Supported formats

Supported: CSV, TSV, TXT. Not supported: XLSX, XLS, ODS, PDF.

File limits and browser requirements

  • Up to 80 MB per CSV, TSV, or TXT file
  • Preview quality depends on browser parsing libraries and may not match desktop applications for complex files.
  • Large files can be slow because parsing, search, and rendering happen in the active browser tab.

Known limits

  • Preview quality depends on browser parsing libraries and may not match desktop applications for complex files.
  • Large files can be slow because parsing, search, and rendering happen in the active browser tab.

Troubleshooting

  • If the file does not open, check the extension, size, and save a simpler copy.
  • If a spreadsheet, document, or presentation looks different from the desktop app, verify the source file in the app that created it.
  • If search or preview feels slow, try a smaller file or close extra tabs.
All file viewersPrivacy PolicyHow Utilio handles data

Common questions

What does Utilio receive?

Runs in your browser. The file and result are not sent to Utilio servers.

What is it useful for?

Use it when you need to open a CSV file online before importing exported leads, orders, logs, or reports. Start by choosing a CSV or TSV file.

Do I need an account?

No. You can use this tool without creating an account.

Can I use it on a phone?

Yes. For large files, complex previews, or careful review, a browser on a computer is usually more comfortable.

How do I get a reliable result?

Choose a CSV or TSV file. Then use search to narrow rows and scan columns. Quoted delimiters and unusual encodings can affect preview.

Which formats are supported?

CSV Viewer supports CSV, TSV, TXT. It does not support XLSX, XLS, ODS, PDF.

What file size works best?

Up to 80 MB per CSV, TSV, or TXT file. Browser memory and device speed can still affect large files.

Why did I not get the result I expected?

Preview quality depends on browser parsing libraries and may not match desktop applications for complex files. If the result still looks wrong, try a smaller or simpler input and review the output before using it.

Does Utilio use my input or results to train AI?

No. Utilio does not use files, pasted text, settings, generated values, or results from this tool to train AI models.