| File Extension: | HK5 |
| File Type Description: | ACT! Database File |
| File Type Developer: | Swiftpage, Inc. |
| Primary Associated Software: | Act! |
| Primary Software Developer: | Swiftpage, Inc. |
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HK5 files are a type of ACT! Database File developed for Act! by Swiftpage, Inc.. Internal website statistics show that HK5 files are most popular with users in United States and those running the Windows 10 operating system. Statisically, these users are most likely running the Google Chrome internet browser.
 | Act! by Swiftpage, Inc. |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .ADF | Cloanto Corporation | Disk Image Files | Amiga Disk File |
| .AME | Sage | Data Files | ACT! E-mail System Library |
| .NDB | Naviter | Data Files | SeeYou Waypoint File |
| .IML | JetBrains | Developer Files | IntelliJ IDEA Module |
| .GDB | Garmin | Database Files | GPS Database File |
| .HDB | HansaWorld | Database Files | HansaWorld Database File |
| .UNQ | Swiftpage, Inc. | Data Files | ACT! 3.0 Email Message Attachment |
| .LCS | Swiftpage, Inc. | Data Files | ACT! History Data |
| .RPC | Synthrone | Page Layout Files | Rich Page Content Document |
| .ATV | Sage | Database Files | ACT! Data File |
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