Extract text from QDT files
To convert your QDT file to another format, you need QccPack or other Raster Image software.
To convert other file formats to the "Quantized Bitmap" file type, you need software like QccPack or a similar tool.
The .QDT extension refers to two distinct legacy formats, often creating confusion for users trying to access old archives.
Based on internal data, the most common definition (approx. 21% of tracked files) is a Quantized Bitmap Image, specifically using Quantized Difference Tones compression. These files are typically generated by QccPack software or associated with the legendary Quantel Paintbox broadcast graphics workstations used in the 80s and 90s.
The Problem: This is a highly specialized raster format designed for efficient storage before modern compression standards like JPEG existed. Because it relies on specific quantization tables (difference tones), standard image viewers like Adobe Photoshop or Windows Photos cannot decode the pixel data, rendering the file unreadable.
The Solution: For archiving and viewing, these files should be converted to PNG (to preserve lossless quality) or TIFF.
A smaller subset of files (0.9%) are financial data files from Quicken (Versions 3 & 4 for DOS).
The Problem: Modern versions of Quicken use the QDF format. A .QDT file is a relic from the DOS era and cannot be opened directly by Quicken Deluxe 2024 or imported into tools like Microsoft Excel.
The Solution: Financial data should be converted to CSV for universal spreadsheet access or PDF for non-editable record keeping.
Convert.Guru analyzes your QDT file, detects the exact format, and lets you read the text inside.
Users also converted ODT, QDF, QXB, QXD and QXP files.
If you want to convert QDT file to XLS, XLSX, XLSM, XLSB, ODS, CSV, TSV, TAB, DIF, SLK, WK1 or WK3, you can use QccPack or similar software from the "Raster Image Storage" category. In the File menu, look for Save As… or Export….
To convert WQ1, XLSM, NOTES, QPW, WK3, WB2, WKS, XLSB, 123, XLS, WB1 or XLSX files to QDT, try QccPack or another comparable tool in the "Raster Image Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our QDT converter.