| File Extension: | HHC |
| File Type Description: | HTML Help Table Of Contents |
| File Type Developer: | Microsoft Corporation |
| Primary Associated Software: | Microsoft HTML Help Workshop |
| Primary Software Developer: | Microsoft Corporation |
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Microsoft HTML Help Workshop is the primary software program that utilizes the HTML Help Table Of Contents file, originally developed by Microsoft Corporation. Internal website statistics show that HHC files are most popular with users in United States and those running the Windows 10 operating system. In most cases, these users are surfing the internet using the Google Chrome browser.
 | Microsoft HTML Help Workshop by Microsoft Corporation |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .ATT | Unknown Developer | Web Files | Web Form Post Data File |
| .CB | Microsoft Corporation | System Files | Microsoft Clean Boot File |
| .WNK | Satish Kumar | Data Files | Wink Presentation |
| .CKP | Microsoft Corporation | Database Files | SQL Server Checkpoint File |
| .PRV | E-on Software, Inc. | 3D Image Files | Vue Preview File |
| .TXE | Open Source | Text Files | Enriched Text File |
| .SID | Valve | Game Files | Steam Game Data Backup File |
| .VSZ | Microsoft Corporation | Developer Files | Visual Studio Wizard File |
| .SYLK | Microsoft Corporation | Data Files | Microsoft Symbolic Link File |
| .RGS | Microsoft Corporation | Executable Files | Registry Script |
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