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File Converters
A Repeatable EML-to-PDF Workflow on Windows: Folders, Attachments, and Logs
Build a repeatable EML-to-PDF workflow on Windows. Organize input and output folders, choose attachment settings, review logs, and check the export.
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Email to PDF Attachments: Separate Files, Embedded Files, or PDF Pages?
Compare email-to-PDF attachment options: separate originals, embedded files, and PDF pages. Choose the right result and check the files before sharing.
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CoolUtils Blog
What Is an XPS File? Microsoft’s PDF Alternative Explained
An XPS file is Microsoft's fixed-layout document format, a PDF alternative from the Vista era. Learn how to open XPS files and convert them to...
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What Is a PRN File? Printer Output Files Explained
A PRN file is raw printer data saved with Print to File in Windows, usually PCL or PostScript. Learn how to open, print and convert...
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CoolUtils Blog
What Is an OLM File? Outlook for Mac Archive Explained
An OLM file is the archive Outlook for Mac uses to export email, contacts and calendars. Learn how to open OLM files on Windows and...
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CoolUtils Blog
What Is an NCM File? NetEase and Kugou Encrypted Audio
NCM and KGM files are encrypted downloads from NetEase Cloud Music and Kugou that play only in those apps. Learn how to convert them to...
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CoolUtils Blog
What Is an HWP File? Korean Hangul Document Explained
An HWP file is a document from Hancom's Hangul word processor, standard in South Korea. Learn how to open HWP files and convert them to...
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CoolUtils Blog
What Is a DXF File? Drawing Exchange Format Explained
A DXF file is Autodesk's open, text-based CAD format for sharing 2D and 3D drawings between programs. Learn how to open DXF files and convert...
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CoolUtils Blog
What Is a STEP File? ISO 10303 3D CAD Format Explained
A STEP file (.step or .stp) is the neutral ISO 10303 format for exchanging 3D CAD models between programs. Learn how to open and convert...
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CoolUtils Blog
What Is a DWG File? AutoCAD Drawing Format Explained
A DWG file is the native AutoCAD drawing format for 2D and 3D CAD data. Learn how to open DWG files without AutoCAD and convert...
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