.DIS file extension
To open .DIS files on Windows, if you have Oracle Discoverer Desktop installed, double-click the .DIS file or open Discoverer Desktop and use its File > Open option to select the workbook.
To open a .DIS file, use Oracle Discoverer Desktop (the workbook examples in Oracle’s documentation use the .DIS extension). If you do not have Discoverer installed, you’ll usually need to open it on a Windows machine where Discoverer Desktop is available.
Last updated: April 30, 2026 · Reviewed by Julian Stricker
Open on your device
Choose your operating system for a dedicated step-by-step opening guide.
How to open .DIS files
Use these platform-specific instructions to open .DIS files safely.
Windows
- If you have Oracle Discoverer Desktop installed, double-click the .DIS file or open Discoverer Desktop and use its File > Open option to select the workbook.
- If Windows asks for an app, choose Oracle Discoverer Desktop (or install it if your organization provides it), then try opening the file again.
Mac
- There is no commonly available native macOS app confirmed by the provided sources for opening Oracle Discoverer .DIS workbooks.
- If you must open it on a Mac, transfer the file to a Windows PC with Oracle Discoverer Desktop (or use a Windows environment provided by your organization) and open it there.
Linux
- There is no commonly available native Linux app confirmed by the provided sources for opening Oracle Discoverer .DIS workbooks.
- If you need access on Linux, move the file to a Windows system with Oracle Discoverer Desktop and open/export it from there to a portable format your Linux tools can read.
iOS
- iOS typically cannot open .DIS workbooks directly; send the file to a Windows PC with Oracle Discoverer Desktop to view/export it.
Android
- Android typically cannot open .DIS workbooks directly; transfer the file to a Windows PC with Oracle Discoverer Desktop to view/export it.
Security notes
- Treat .DIS as a potentially proprietary data file: open it only with the application your organization expects (for example, Oracle Discoverer Desktop for Discoverer workbooks).
- Be cautious with .DIS files from untrusted sources: even if the file is “just data,” opening it still relies on complex parsers that may have vulnerabilities.
- Avoid using unofficial “.DIS opener/converter” tools from unknown vendors; prefer the original vendor software or an export created by the file’s author.
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Can't open this file?
These are the most common causes and fixes when .DIS files fail to open.
Common reasons
- Windows says “Choose an app to open this .DIS file”
- The file opens but shows errors or missing data
- The .DIS file seems to be the “wrong” type of .DIS
Fix steps
- Confirm with the sender/system which application created the .DIS file (for example, Oracle Discoverer Desktop workbook).
- Install Oracle Discoverer Desktop if available in your environment, then open it from within the application (File > Open).
- If you do have Discoverer, set the file association to open .DIS with Discoverer Desktop.
OS-specific troubleshooting
What is a .DIS file?
In common business-intelligence workflows, a .DIS file is an Oracle Discoverer Desktop workbook file (a saved set of reports/queries and related settings). In MIME registries, .dis is also associated with the official IANA media type application/vnd.Mobius.DIS, indicating the extension can be used by more than one ecosystem. Because the extension is ambiguous, the safest way to identify your file is to confirm which application produced it (for example, Oracle Discoverer Desktop).
Background
Oracle’s Discoverer Desktop documentation includes workbook file examples that end in .DIS, supporting that this extension is used for Discoverer workbooks. In practice, these files are exchanged inside organizations that use Oracle Discoverer for reporting, where a “workbook” stores report definitions and related configuration so users can reopen and refresh analyses later.
On many systems, a .DIS file will not open by double-clicking unless the producing application is installed and file associations are set up. Even though MIME registries also recognize application/vnd.Mobius.DIS, that registration alone does not guarantee that your .DIS file is compatible with any specific viewer—so it’s important to match the file with the tool that created it.
If you are unsure what kind of .DIS file you have, treat it as potentially proprietary data and avoid random “converter” utilities. Instead, confirm its origin (email sender, system export, or application) and then use the appropriate vendor software to open or export it to a more portable format.
Common MIME types: application/vnd.Mobius.DIS
Further reading
Authoritative resources for more details on the .DIS format.
Common .DIS issues
Windows says “Choose an app to open this .DIS file”
This usually means Oracle Discoverer Desktop (or the correct application for your specific .DIS variant) is not installed, or the file association is missing.
- Confirm with the sender/system which application created the .DIS file (for example, Oracle Discoverer Desktop workbook).
- Install Oracle Discoverer Desktop if available in your environment, then open it from within the application (File > Open).
- If you do have Discoverer, set the file association to open .DIS with Discoverer Desktop.
The file opens but shows errors or missing data
If the .DIS is a Discoverer workbook, it may reference databases, EULs, or other environment-specific resources not available on your machine.
- Open the workbook on the same network/environment where it was created (or with the same Discoverer configuration).
- Verify you have the required database connectivity and permissions used by the workbook.
- Ask the workbook author to export/share in a more portable output format if you only need the results.
The .DIS file seems to be the “wrong” type of .DIS
The .dis extension is ambiguous; MIME registries also list application/vnd.Mobius.DIS, so not every .DIS file is an Oracle Discoverer workbook.
- Check the file’s source and context (which application or system produced it).
- If your environment expects Mobius-related DIS content, ensure the receiving software supports application/vnd.Mobius.DIS.
- If unsure, do not attempt random converters; instead, ask the sender for the producing application and an export to a standard format.
FAQ
What program opens a .DIS file?
In Oracle documentation, .DIS is used for Oracle Discoverer Desktop workbook files, which are opened with Oracle Discoverer Desktop. However, .dis can be used by other formats too (for example, the IANA media type application/vnd.Mobius.DIS exists), so the correct program depends on what created your file.
Is .DIS the same as a PDF or spreadsheet?
No. A Discoverer .DIS is a workbook definition (reports/queries and settings), not a generic document like PDF or an .xlsx file. You typically open it in Discoverer and then export results to a more portable format if needed.
Can I convert a .DIS file by renaming it?
No. Renaming only changes the extension; it does not convert the underlying data. Use the creating application’s export features or a supported conversion workflow.
Why won’t my phone open a .DIS file?
Oracle Discoverer Desktop is a desktop tool, and the provided sources do not indicate common iOS/Android support for opening Discoverer .DIS workbooks. The usual approach is to open it on Windows and export the results to a mobile-friendly format.
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