10 MB CSV sample file
A CSV file of exactly 10,485,760 bytes. It is a valid Comma-separated values file, generated for this site and checked with an independent parser.
Download
sample-csv-10mb.csv
10 MB10,485,760 bytes
Download 10 MB CSVDirect download. No sign-up and no waiting.
- Type
- text/csv
- SHA-256
a6c3f0a63e30ea050634f5621e028555ff58ff767cd0bdd99c4079e974cdfef1- Direct URL
https://sampletestfiles.com/downloads/csv/sample-csv-10mb.csv
What is in this file
A header row and 77,720 rows of fictional customer records in 12 columns. The notes field of the last row is lengthened so the file lands on the exact byte count.
| Data rows | 77,720 |
|---|---|
| Columns | 12 |
| Delimiter | Comma |
| Header row | Yes |
| Line endings | CRLF (RFC 4180) |
| Encoding | UTF-8 (ASCII characters only) |
How the file begins
The opening lines of sample-csv-10mb.csv, exactly as they appear in the file.
id,first_name,last_name,email,phone,city,country,signup_date,plan,balance,active,notes
1,Ethan,Zeller,ethan.zeller1@example.com,+1-202-555-0163,Pune,IN,2021-07-10,team,2769.84,true,Billing contact changed recently
2,Elena,Underhill,elena.underhill2@example.net,+1-202-555-0166,Porto Alegre,BR,2024-04-28,free,4647.61,true,Interested in bulk pricing
3,Ethan,Farrow,ethan.farrow3@example.org,+1-202-555-0170,Krakow,PL,2023-08-24,business,536.73,false,Interested in bulk pricing
4,Victor,Brennan,victor.brennan4@example.com,+1-202-555-0175,Lisbon,PT,2024-12-18,business,2410.43,true,Referred by an existing customer
5,Felix,Ibarra,felix.ibarra5@example.net,+1-202-555-0171,Graz,AT,2025-11-14,starter,2832.21,false,Requested data export
6,Kira,Hollis,kira.hollis6@example.com,+1-202-555-0109,Cork,IE,2025-06-25,starter,3636.58,true,Prefers invoices by emailPreview
Shows the first 64 KB of the file.
Where 10 MB matters
A 10,485,760-byte file: over the default limits of PHP, API Gateway and Spring Boot requests. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| Amazon API Gateway | 10 MB payload | A 10 MB file in a multipart or base64 body is over the limit. |
| Spring Boot multipart | 10 MB per request by default (max-request-size) | Exceeded once form overhead is added. |
| PHP | 8 MB POST body by default (post_max_size) | Rejected before the script runs. |
| Amazon S3 multipart upload | 5 MiB minimum part size | This file splits into exactly two minimum-sized parts. |
| Email attachments | Commonly 20 to 25 MB per message | 10 MB fits, at about 13.3 MB once encoded. |
Use this file for
- Exercising chunked and resumable uploads
- Checking delimiter and encoding detection
- Load-testing with many rows
Testing notes for CSV
- Splitting each line on commas breaks on quoted fields. Test with the quoted-fields sample before trusting an importer.
- Excel opens CSV files using the system locale, so a file that works in one country shows everything in one column in another.
Technical details
| File name | sample-csv-10mb.csv |
|---|---|
| Format | CSV (Comma-separated values) |
| Extension | .csv |
| MIME type | text/csv |
| Size | 10,485,760 bytes (10 MB) |
| Kind | Text |
| SHA-256 | a6c3f0a63e30ea050634f5621e028555ff58ff767cd0bdd99c4079e974cdfef1 |
| Created | 2026-10-10 |
| Validation | Exact size, signature bytes and structure checked when the file was generated |
| Preview | Available on this page |
| Source | Generated for this site; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Spreadsheets |
Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Download from the command line and verify
Fetch the file with curl, then compare its checksum with the SHA-256 value above.
curl -o sample-csv-10mb.csv 'https://sampletestfiles.com/downloads/csv/sample-csv-10mb.csv'
sha256sum sample-csv-10mb.csv # Linux
shasum -a 256 sample-csv-10mb.csv # macOSOn Windows, run Get-FileHash sample-csv-10mb.csv -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.
Related files
Questions about this file
- Is this file exactly 10 MB?
- Yes. It is 10,485,760 bytes, which is 10 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 10 MB CSV file?
- A header row and 77,720 rows of fictional customer records in 12 columns. The notes field of the last row is lengthened so the file lands on the exact byte count.
- Is the data real?
- No. Names are invented, email addresses use the reserved example.com domains and phone numbers use the fictional 555-01xx range.