| File Extension: | CH1 |
| File Type Description: | IBM Freelance Graphics Chart File |
| File Type Developer: | IBM |
| Primary Associated Software: | Lotus Freelance Graphics |
| Primary Software Developer: | IBM |
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Release of the Lotus Freelance Graphics software program prompted the development of the IBM Freelance Graphics Chart File file type by IBM. Our internal web tracking data indicates that Windows 10 operating system users, and those living in Japan, are the most likely to use IBM Freelance Graphics Chart File files. Google Chrome is their primary internet browser for the bulk of these users.
 | Lotus Freelance Graphics by IBM |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .ADK | IBM | Backup Files | OS/2 Saved SKF Format |
| .IRL | IBM | Settings Files | IBM WebSphere ILOG JRules Rule File |
| .XST | IBM | Settings Files | WebSphere Query Template |
| .9 | Ubisoft | Game Files | Salt Lake Winter Olympics 2002 Game Music File |
| .LSQ | IBM | Data Files | IBM Voice Type Languages Addword Data |
| .AIO | IBM | Developer Files | APL Transfer Format File |
| .IL | Microsoft Corporation | Uncommon Files | MSIL Assembler Input File |
| .U2P | IBM | Developer Files | Telelogic Tau UML Program Text File |
| .PRF | Microsoft Corporation | Settings Files | Outlook Profile File |
| .ODZ | IBM | Data Files | IBM OpenDoc Editor Package |
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