| File Extension: | OCS |
| File Type Description: | eDoc DigiSign Digitally Signed Document |
| File Type Developer: | Fujitsu Limited |
| Primary Associated Software: | digiSeal Reader |
| Primary Software Developer: | Secrypt |
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EDoc DigiSign Digitally Signed Document files are the most popular type of files to carry the OCS file extension, originally developed by Secrypt for digiSeal Reader. Data from our web servers (annonymous users) show that OCS files are most popular in United States and are often used by Windows 10. A vast majority of these users are opting to use Google Chrome as their preferred internet browser.
 | digiSeal Reader by Secrypt |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .P7S | Unknown Developer | Encoded Files | PKCS #7 Signature File Format |
| .ZIN | Open Source | Data Files | Zindo Input Data |
| .TKB | Elk River Systems | Data Files | TicketBench Data File |
| .ICG | Bolide Software | Data Files | Image Comparer Gallery File |
| .WEBPART | Microsoft Corporation | Data Files | Microsoft SharePoint Web Part File |
| .STORAGE | Apple | Data Files | Golden Orchard Apple II CD Rom File |
| ._VW8XSLN110 | Microsoft Corporation | Data Files | Microsoft Visual Studio File |
| .TEM | E J Software | Data Files | Badge Designer 2000 Data |
| .VI | National Instruments | Data Files | LabVIEW Virtual Instrument File |
| .DPD | David Pilling | Page Layout Files | Ovation Pro File |
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