1 MB ODT sample file
An ODT file of exactly 1,048,576 bytes. It is a valid OpenDocument Text file, generated for this site and checked with an independent parser. Use it wherever you need a 1 MB sample, test or dummy ODT file.
Download
sample-odt-1mb.odt
1 MB1,048,576 bytes
Download 1 MB ODTDirect download. No sign-up and no waiting.
- Type
- application/vnd.oasis.opendocument.text
- SHA-256
67d6028ca882ae06fffd21a182ca463383f8a61b850ef7a265eeb820741be3c8- Direct URL
https://www.sampletestfiles.com/downloads/odt/sample-odt-1mb.odt
What is in this file
A short text document with headings, body text, a list and a table, plus one embedded test-card PNG of 1,045,343 bytes. The image is stored uncompressed and sized so that the document is exactly 1,048,576 bytes.
| Contents | Headings, paragraphs, a bulleted list, a table and one image |
|---|---|
| Embedded image | PNG, 676 × 515 px |
| ODF version | 1.3 |
| Macros | None |
| Container | ZIP (OpenDocument package) |
First bytes of the file
The first 64 bytes of sample-odt-1mb.odt as a hex dump: offset, bytes, then the same bytes as text. The ODT signature is 50 4B 03 04.
00000000 50 4b 03 04 14 00 00 00 00 00 00 00 21 5c 5e c6 |PK..........!\^.|
00000010 32 0c 27 00 00 00 27 00 00 00 08 00 00 00 6d 69 |2.'...'.......mi|
00000020 6d 65 74 79 70 65 61 70 70 6c 69 63 61 74 69 6f |metypeapplicatio|
00000030 6e 2f 76 6e 64 2e 6f 61 73 69 73 2e 6f 70 65 6e |n/vnd.oasis.open|Preview
ODT files cannot be shown in a browser. Download the file and open it in an application that reads ODT, such as LibreOffice Writer and Apache OpenOffice.
Where 1 MB matters
A 1,048,576-byte file: exactly the default upload limit of nginx, Spring Boot and Next.js. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| nginx | 1 MB by default (client_max_body_size) | A multipart upload of this file exceeds the limit by the size of the form boundaries. |
| Spring Boot multipart | 1 MB per file by default (max-file-size) | A file of exactly 1 MB is at the limit. |
| Next.js API routes and Server Actions | 1 MB by default | Larger bodies need the size limit raised in configuration. |
| Cloud Firestore documents | 1 MiB (1,048,576 bytes) | The same number of bytes as this file. |
| Apache Kafka messages | About 1 MB by default | Brokers reject larger records unless message.max.bytes is raised. |
Use this file for
- Finding the first upload limit in a new stack
- Testing document uploads in public-sector and education software, where ODT is often mandatory
- Checking conversion between ODT, DOCX and PDF
Testing notes for ODT
- Layout rarely survives a round trip through Word unchanged: fonts, numbering and tables are the usual casualties.
- Reading the type from the mimetype entry only works if that entry comes first and is not compressed. Tools that re-zip a document tend to break both rules, and strict readers then reject the file.
Technical details
| File name | sample-odt-1mb.odt |
|---|---|
| Format | ODT (OpenDocument Text) |
| Extension | .odt |
| MIME type | application/vnd.oasis.opendocument.text |
| Size | 1,048,576 bytes (1 MB) |
| Kind | Binary |
| Signature | 50 4B 03 04 |
| SHA-256 | 67d6028ca882ae06fffd21a182ca463383f8a61b850ef7a265eeb820741be3c8 |
| Created | 2026-10-10 |
| Validation | Exact size, signature bytes and structure checked when the file was generated |
| Preview | Not available for this file; details only |
| Source | Generated for this site; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Documents |
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-odt-1mb.odt 'https://www.sampletestfiles.com/downloads/odt/sample-odt-1mb.odt'
sha256sum sample-odt-1mb.odt # Linux
shasum -a 256 sample-odt-1mb.odt # macOSOn Windows, run Get-FileHash sample-odt-1mb.odt -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 1 MB?
- Yes. It is 1,048,576 bytes, which is 1 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 1 MB ODT file?
- A short text document with headings, body text, a list and a table, plus one embedded test-card PNG of 1,045,343 bytes. The image is stored uncompressed and sized so that the document is exactly 1,048,576 bytes.
- Will the ODT samples open in Microsoft Word?
- Yes. Word has opened OpenDocument text files since Word 2007 Service Pack 2. The samples use only headings, paragraphs, a list, a table and one image.