Opening a DOQQ File

The DOQQ file type is primarily associated with Digital Orthophoto Quarter Quadrangle.

DOQQ	File extension: DOQQ
	File type:	Digital Orthophoto Quarter Quadrangle files

What is a DOQQ file?

DOQQ files mostly belong to Digital Orthophoto Quarter Quadrangle. (smaller digital aerial photo)

How to open a DOQQ file

You need a suitable software like Digital Orthophoto Quarter Quadrangle to open a DOQQ file. You need a suitable software like Digital Orthophoto Quarter Quadrangle to open a DOQQ file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your DOQQ file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a DOQQ file directly in the browser:. Just drag the file onto this browser window and drop it.

Online DOQQ Text Viewer

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Online File Viewer

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What to Do When a .DOQQ File Fails to Open

Because .DOQQ files originate from various geographic systems, they aren't universally openable.

Identify the Source: If received from a cartographer or the USGS, it is likely a Digital Orthophoto Quarter Quadrangle containing aerial imagery.
Check the Header: Open the file in a text or hex editor to inspect the first bytes.
- "BEGIN_USGS_DOQ" indicates a standard USGS text header.
- "II" or "MM" suggests a TIFF/GeoTIFF structure.
- Readable XML implies a metadata companion file.
Use the Original Software: The original GIS program is usually required; try QGIS, ESRI ArcGIS, or Global Mapper, or ask the sender if uncertain.
Use this Webpage: Drag and drop your file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for DOQQ File Extension

a doqq Digital Orthophoto Quarter Quadrangle file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with DOQQ files

Associate the DOQQ file extension with the correct application.
Update your software that should actually open Digital Orthophoto Quarter Quadrangle files. Because only the current version supports the latest DOQQ file format. Search, therefore, e.g. on the manufacturer website after an available Digital Orthophoto Quarter Quadrangle update.
To make sure that your DOQQ file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .DOQQ file online - secure, fast, and no downloads needed.