| File Extension: | OPTNS |
| File Type Description: | Unknown Apple II File |
| File Type Developer: | found on Golden Orchard Apple II CD Rom |
| Primary Associated Software: | Unknown Apple II File |
| Primary Software Developer: | found on Golden Orchard Apple II CD Rom |
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 | Unknown Apple II File by found on Golden Orchard Apple II CD Rom |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .JQL | Unknown Developer | Uncommon Files | Uncommon File Extension |
| .X3M | Unknown Developer | Uncommon Files | Uncommon File Extension |
| .AGD | AgileGraph | Data Files | AgileGraph Data File |
| .NVI | NVIDIA | Uncommon Files | NVIDIA Driver File |
| .QVI | Unknown Developer | Uncommon Files | Uncommon File Extension |
| .TY2 | Unknown Developer | Uncommon Files | Gualtieri Theme Maker File |
| .DLB | Symantec Corporation | Uncommon Files | Troj/Dloadr-AHT Data |
| .CHANGELOG | Unknown Developer | Uncommon Files | Project Log Or Record File |
| .I8T | Unknown Developer | Uncommon Files | Unknown File Type |
| .W | Progress Software Corporation | Developer Files | OpenEdge Architect Source Code File |
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