50 KB XLSX sample file

An XLSX file of exactly 51,200 bytes. It is a valid Excel workbook (Office Open XML) file, generated for this site and checked with an independent parser.

sample-xlsx-50kb.xlsx

50 KB51,200 bytes

Download 50 KB XLSX

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Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
SHA-256: 88fc250495a20866104a0b5217489c9a0ca437202c7a2a75602633e8dad8c014
Direct URL: https://sampletestfiles.com/downloads/xlsx/sample-xlsx-50kb.xlsx

What is in this file

One worksheet with a bold, frozen header row and 696 rows of fictional orders: text, dates, numbers and a formula in every row. 197 bytes of text in the workbook description property bring the file to the exact size.

Sheets	1 (Orders)
Data rows	696
Columns	9
Formulas	696 (total = quantity × unit price)
Frozen panes	Header row
Macros	None
Container	ZIP (Office Open XML)

First bytes of the file

The first 64 bytes of sample-xlsx-50kb.xlsx as a hex dump: offset, bytes, then the same bytes as text. The XLSX signature is 50 4B 03 04.

00000000  50 4b 03 04 14 00 00 00 08 00 00 00 21 5c 19 27  |PK..........!\.'|
00000010  be 30 2f 01 00 00 96 03 00 00 13 00 00 00 5b 43  |.0/...........[C|
00000020  6f 6e 74 65 6e 74 5f 54 79 70 65 73 5d 2e 78 6d  |ontent_Types].xm|
00000030  6c ad 93 cf 4e 02 31 10 c6 ef 3e 45 d3 2b d9 16  |l...N.1...>E.+..|

Preview

XLSX files cannot be shown in a browser. Download the file and open it with Microsoft Excel.

Where 50 KB matters

A 51,200-byte file, half of the default body limit in several web frameworks. These are the default limits a file of this size is useful for testing:

System	Limit	Note
Express body parsers	100 KB by default	50 KB is accepted; 500 KB is rejected with 413 unless the limit is raised.
Base64 encoding	Adds 33 percent	50 KB becomes about 67 KB when embedded in JSON.

All 50 KB sample files

Use this file for

Testing document previews
Testing spreadsheet import features
Checking date and number conversion

Testing notes for XLSX

Importers that read only cached values and importers that recalculate formulas can disagree. The samples include a formula in every row.
A date cell is a number with a format; importers that ignore the format show values such as 45123 instead of a date.

XLSX format reference

Technical details

File name	sample-xlsx-50kb.xlsx
Format	XLSX (Excel workbook (Office Open XML))
Extension	.xlsx
MIME type	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Size	51,200 bytes (50 KB)
Kind	Binary
Signature	50 4B 03 04
SHA-256	88fc250495a20866104a0b5217489c9a0ca437202c7a2a75602633e8dad8c014
Created	2026-10-10
Validation	Exact size, signature bytes and structure checked when the file was generated
Preview	Not available for this format; details only
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-xlsx-50kb.xlsx 'https://sampletestfiles.com/downloads/xlsx/sample-xlsx-50kb.xlsx'
sha256sum sample-xlsx-50kb.xlsx     # Linux
shasum -a 256 sample-xlsx-50kb.xlsx # macOS

On Windows, run Get-FileHash sample-xlsx-50kb.xlsx -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 50 KB?: Yes. It is 51,200 bytes, which is 50 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 50 KB XLSX file?: One worksheet with a bold, frozen header row and 696 rows of fictional orders: text, dates, numbers and a formula in every row. 197 bytes of text in the workbook description property bring the file to the exact size.
How many rows are in the 10 MB XLSX sample?: The exact row count is listed on each download page. Because XLSX is compressed, a 10 MB workbook holds a few hundred thousand rows.

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