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.SHC file extension

To open .SHC files on Windows, install/open Adobe Photoshop.

To open a .SHC file, use Adobe Photoshop and load it as a contour preset (Layer Style/Contours). If you only need to inspect it, note that Photoshop .SHC files are binary contour settings and typically won’t display meaningfully in generic viewers.

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Last updated: June 11, 2026 · Reviewed by Julian Stricker

What “reviewed” means on this page
  • Format fit: whether the “what is this file?” description matches common real-world use of the extension, including category, typical MIME types, and aliases.
  • Opening paths: whether Windows / macOS / Linux steps read plausibly for current OS dialogs and default apps; we remove fantasy menus and unsafe shortcuts.
  • Security framing: whether risk notes match the extension class (for example executables vs plain data) and whether affiliate wording does not contradict the security section.
  • Sources and further reading: whether external links point to vendors, standards bodies, or other primary references where possible; we avoid inventing details we cannot ground.
  • Limits: this is clarity and safety-messaging QA, not a guarantee that every statement is exhaustive or that every binary you download is harmless.

Full methodology in the Imprint — The Imprint also states where AI is used and what that does—and does not—replace.

Open on your device

Choose your operating system for a dedicated step-by-step opening guide.

How to open .SHC files

Use these platform-specific instructions to open .SHC files safely.

Windows

  1. Install/open Adobe Photoshop.
  2. In Photoshop, open a Layer Style dialog that uses Contour (e.g., Bevel & Emboss) and use the contour preset management to load/import the .SHC contour file (contour preset).
  3. If double-clicking the file doesn’t work, right-click the .SHC file → Open with → Adobe Photoshop (or set Photoshop as the default app for .SHC).
Full Windows guide

Mac

  1. Install/open Adobe Photoshop for macOS.
  2. Load the contour preset from within Photoshop’s Layer Style/Contour controls (import/load the .SHC preset from the contour manager).
  3. If Finder won’t open it directly, open Photoshop first and then load/import the contour preset from within the relevant Layer Style panel.
Full Mac guide

Linux

  1. Native Linux support is uncommon because Adobe Photoshop is not typically available as a native Linux app.
  2. If you must use the file, transfer it to a Windows/macOS system with Adobe Photoshop and load the contour preset there.
  3. If you only need to confirm the file type, you can check whether it appears to be binary (typical for Photoshop .SHC) rather than readable text.
Full Linux guide

iOS

  1. .SHC Photoshop contour files are not commonly supported on iOS; open them on a desktop with Adobe Photoshop to load the contour preset.
Full iOS guide

Android

  1. .SHC Photoshop contour files are not commonly supported on Android; open them on a desktop with Adobe Photoshop to load the contour preset.
Full Android guide

Security notes

  • .SHC Photoshop contour files are data/preset files (not scripts), but they are still parsed by Photoshop; only load presets from sources you trust to reduce the risk from malformed files targeting file parsers.
  • Be cautious if an .SHC file is delivered in an unexpected context (e.g., claiming to be a document or installer). The extension may be used to mislabel unrelated content; verify the file origin and expected use in Photoshop contours.

If you did not expect this file

This extension is usually plain data, text, or structured content—not a program by itself. The practical risk is social engineering (a scam attachment or misleading filename). For trusted senders you rarely need heavy-handed antivirus wording; use these tools when you want an extra check on unexpected downloads.

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Can't open this file?

These are the most common causes and fixes when .SHC files fail to open.

Common reasons

  • Windows or macOS can’t open the .SHC file (no app associated)
  • The .SHC file opens as garbled text in a text editor
  • Photoshop won’t load/import the contour preset

Fix steps

  1. Install or update Adobe Photoshop.
  2. Open Photoshop and load/import the contour preset from the Layer Style Contour management (rather than expecting the file to “open” like a document).
  3. On Windows, set Adobe Photoshop as the default app for .SHC via Open with → Choose another app.

OS-specific troubleshooting

What is a .SHC file?

.SHC (in the most common usage) is a Photoshop “Contour settings” file used by Layer Effects to store contour curves/presets. Adobe’s Photoshop File Formats Specification documents .SHC as a Windows extension for this binary contour file structure. This is different from the W3C SHACL Compact Syntax media type (text/shaclc), which is a separate text format and not the same as Photoshop .SHC.

Background

In Adobe Photoshop, “contours” control how certain layer effects (such as Bevel & Emboss, Inner Shadow, etc.) transition over their range. Photoshop lets you manage (save/load) contour presets so you can reuse the same effect curves across projects.

Photoshop stores these contour presets in .SHC files (Contour settings files). The Adobe Photoshop File Formats Specification describes the contour settings file format and identifies .SHC as the Windows extension for these contour files.

Be aware that the extension can be confusing: W3C SHACL Compact Syntax uses the registered media type text/shaclc, which looks similar to “shc” but is not the same thing as Photoshop’s binary contour settings file. If your .SHC file is plain text and looks like a syntax-based document, it may be mislabeled or unrelated; the common .SHC you’ll encounter in design workflows is the Photoshop contour preset file.

Common MIME types: text/shaclc

Further reading

Authoritative resources for more details on the .SHC format.

Common .SHC issues

Windows or macOS can’t open the .SHC file (no app associated)

This usually happens when Photoshop isn’t installed or the file association is missing. .SHC contour files are meant to be loaded from within Photoshop’s contour/preset management.

  1. Install or update Adobe Photoshop.
  2. Open Photoshop and load/import the contour preset from the Layer Style Contour management (rather than expecting the file to “open” like a document).
  3. On Windows, set Adobe Photoshop as the default app for .SHC via Open with → Choose another app.

The .SHC file opens as garbled text in a text editor

Photoshop contour settings files are binary; viewing them in a text editor will look like random characters.

  1. Open/load the file in Adobe Photoshop using the contour preset manager instead of a text editor.
  2. If you expected a readable syntax file, verify the source: it may not be a Photoshop contour file, or it may have been given the wrong extension.

Photoshop won’t load/import the contour preset

The file may be corrupted, incomplete, or not actually a Photoshop contour settings file.

  1. Re-download or re-copy the file from the original source to avoid partial transfers.
  2. Confirm the file came from a Photoshop workflow (Layer Effects contour preset).
  3. Try loading the .SHC in a different Photoshop version or on another machine to rule out a local configuration issue.

FAQ

What is an .SHC file used for in Photoshop?

It commonly stores Photoshop “Contour settings” (contour presets) used by Layer Effects to control how an effect transitions or curves.

Can I open an .SHC file in a text editor?

Usually no. Photoshop .SHC contour settings files are binary; a text editor will show unreadable output. Use Photoshop to load the preset.

Is .SHC the same as SHACL Compact Syntax (text/shaclc)?

No. SHACL Compact Syntax is a W3C text format with the media type text/shaclc. Photoshop .SHC is a different, binary contour settings file.

Can I convert .SHC to PNG, PDF, or another document/image format?

Not directly. A .SHC file is a preset/settings file, not an image or document. You apply the contour preset in Photoshop to a layer effect and then export your image in the desired format.

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