CSV Reader & CSV Viewer

CSV Reader & CSV Viewer — Fast, Private & Offline

Open CSV, Excel (XLSX), TSV and JSON files instantly on your Android device.

CSV Reader is a fast, lightweight CSV viewer and Excel file viewer designed for viewing tabular data without the complexity of a full spreadsheet app. Open files from your device or cloud storage and explore them in a clean, sortable grid.

No uploads. No waiting. Your files stay on your device.

FAST CSV & EXCEL FILE VIEWER

• Open CSV files instantly
• View Excel XLSX files
• Open TSV and JSON data
• Browse data in a clean spreadsheet-style grid
• Pinned column headers for easier navigation
• Smooth horizontal and vertical scrolling

SEARCH, SORT & FILTER DATA

Find the information you need without opening a full spreadsheet editor.

• Search across your data
• Filter rows by column values
• Sort tabular data quickly
• Save filtered views for frequently used files
• Reopen recent files in seconds

Whether you’re checking an exported report, transaction list, product catalog, database export, log file or spreadsheet, CSV Reader makes large tables easier to explore on your phone.

CSV, TSV, JSON & XLSX SUPPORT

One lightweight data file viewer for multiple formats:

• CSV — Comma-Separated Values
• TSV — Tab-Separated Values
• XLSX — Microsoft Excel spreadsheets
• JSON — Structured data files

CSV Reader also automatically detects common text encodings including UTF-8, UTF-16 and ISO-8859, helping files display correctly without manual configuration.

EXPORT DATA TO PDF

Need to share or save your data in a readable format?

Export your tabular data as a formatted PDF directly from the app.

PRIVATE & OFFLINE

Your files can contain sensitive business, financial or personal information. CSV Reader is designed with privacy in mind.

• File contents are processed on your device
• Files are not uploaded to our servers
• Core file viewing works offline
• No account required
• No camera permission
• No microphone permission
• No location permission
• No contacts permission

Open your files without sending their contents to an online conversion service.

RECENT FILES & SAVED VIEWS

Working with the same data regularly?

CSV Reader remembers your recent files for quick access. You can also save filtered views so frequently used datasets are easier to revisit.

OPTIONAL ACCOUNT & SYNC

An account is not required to open and view files.

Optionally sign in with Google or email to sync supported app data, such as saved views and recent file history, across your devices.

BUILT FOR MORE THAN JUST CSV

CSV Reader is useful for:

• CSV exports
• Excel spreadsheets
• Database exports
• Transaction and financial reports
• Product and inventory lists
• Analytics exports
• Contact lists
• Log and data files
• Research datasets
• Developer data
• Business reports

If you need a simple CSV reader, CSV viewer, XLSX viewer, Excel viewer, TSV viewer or JSON viewer without the overhead of a full spreadsheet application, CSV Reader gives you a fast and focused way to inspect your data.

PRIVACY & ANALYTICS

File contents are processed on-device and are never uploaded or shared by CSV Reader.

Crash diagnostics and basic usage analytics are collected through Firebase to help us improve app stability and performance.

Advertising is provided through Google AdMob. Where required, including in the EU/EEA, consent will be requested before applicable advertising technologies are used.

PERMISSIONS

Storage / file access — used only to access files that you choose to open.

CSV Reader does not require access to your camera, microphone, location or contacts.

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Open CSV. View Excel. Search your data. Stay offline.

Feedback or suggestions?

csvreader@cossine.com