How to open .PAT files on iOS
To open .PAT files on iOS, iOS typically won’t preview .PAT files reliably; transfer the file to a desktop where CorelDRAW or your CAD application can load it as a pattern/hatch resource.
Step-by-step instructions
- iOS typically won’t preview .PAT files reliably; transfer the file to a desktop where CorelDRAW or your CAD application can load it as a pattern/hatch resource.
Common issues
.PAT won’t open or shows the wrong app
The .pat extension is used by multiple unrelated formats (CorelDRAW patterns and CAD hatch definitions), so the OS may not know which program to use.
- Confirm the source/workflow (CorelDRAW pattern fill vs CAD hatch pattern).
- Open the file from inside the correct application using its pattern/hatch import or load function.
- If needed, change the file association ("Open with") to the correct program for your workflow.
I expected an image preview, but it’s not viewable
Many .PAT files are pattern resources/definitions, not standalone raster images meant for gallery-style viewing.
- Use CorelDRAW’s pattern fill features to apply the pattern to an object and preview it in-document.
- If it’s a CAD hatch .PAT, apply it as a hatch in the CAD tool to see the pattern rendered.
- If you need a shareable preview, create a screenshot or export from the host application after applying the pattern.
Pattern/hatch doesn’t appear or looks wrong after loading
Pattern resources can depend on how they’re applied (scale, rotation, spacing) or on application-specific interpretation of the pattern definition.
- Adjust pattern fill parameters (scale/rotation/offset) in CorelDRAW or hatch settings in your CAD tool.
- Verify you’re using the correct .PAT type for your application (Corel pattern vs CAD hatch).
Still can’t open your .PAT file?
Recover a deleted or lost .PAT file
If the file was deleted by mistake or the drive was formatted, data recovery software may be able to get it back. Stop writing to that drive right away, because new data can overwrite what you want to recover.
Windows software that recovers deleted or lost files from PCs and external drives such as HDDs, SSDs, USB drives and memory cards, after deletion, formatting or a crash.
Wondershare RecoveritWindows and Mac software that recovers deleted or lost files from computers and external drives such as HDDs, SSDs, USB drives and SD cards.
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Security note
.PAT files are typically data/resources, but they are still parsed by complex applications (graphics/CAD), so only open patterns from sources you trust to reduce the risk of malformed-file parser vulnerabilities.