lookup> .p7s

.P7S·File Extension

P7S Data & Text — A .p7s file is a P7S Data & Text. It is a text-based data format widely used for configuration files, data interchange and API payloads.

Data & Textapplication/pkcs7-signature

Quick facts

Extension.p7s

File typeP7S Data & Text

MIME typeapplication/pkcs7-signature

CategoryData & Text

Charset—

Compressible—

What is .p7s

What is a .p7s file?

A .p7s file is a P7S Data & Text. It is a text-based data format widely used for configuration files, data interchange and API payloads.

In the mime-db registry it maps to application/pkcs7-signature. When serving .p7s over HTTP, set the Content-Type header as shown in Developer info below.

Related entities: it maps to application/pkcs7-signature — and is delivered over HTTP via the Content-Type header.

How to open .p7s files

Use VS Code or Notepad++ to open and edit .p7s files.
Any text editor (Notepad, VS Code) can inspect the raw content as text.

Developer info

When served over HTTP, responses should set the following header:

Content-Type: application/pkcs7-signature

Common software that reads/writes .p7s:

VS CodeNotepad++Sublime Textjq

Relation chain

.p7sextension of

format

P7S Data & Textserved as

mime type

application/pkcs7-signaturesent via header

http header

Related extensions

Related MIME types

application/pkcs7-signature

.p7s

Common uses

Configuration files
Data interchange between systems
API request and response payloads
Logs and data exports

How to edit .p7s files

Open the file with VS Code, make your changes and save.
Most editors preserve the original formatting and encoding — avoid changing the charset.

How to create .p7s files

Create a new file and save it with the .p7s extension, or export this format from VS Code.

Frequently asked questions

What programs can open .p7s files?

Common options include VS Code, Notepad++, Sublime Text. You can also open many of these files with built-in viewers or a browser.

How do I create a .p7s file?

Create a new file in any text editor or the app that owns the format and save it with the .p7s extension.

What is the relationship between .p7s and the application/pkcs7-signature MIME type?

application/pkcs7-signature is the media type identifier used for .p7s files during network transfer (for example in the HTTP Content-Type header).

Sources & standards

Updated 2026-09-13

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