Extract text from QIX files
To convert your QIX file to another format, you need QGIS or other GIS software.
To convert other file formats to the "Spatial Index Sidecar" file type, you need software like QGIS or a similar tool.
A .QIX file is a specific type of spatial index generated by QGIS (Quantum GIS) to accelerate the rendering and querying of vector datasets, most commonly ESRI Shapefiles. Unlike the actual map data stored in a SHP file or the attribute table in a DBF file, the .QIX contains no viewable content itself. Instead, it acts as a "lookup tree" (specifically a quadtree) that allows the software to instantly locate features without scanning the entire dataset.
The most common issue users encounter is attempting to open a .QIX file as a standalone document. Because it is a binary sidecar file, double-clicking it will likely trigger an "Unknown File Type" error or display garbled code in a text editor. Furthermore, users often mistakenly email only the .QIX file to colleagues, rendering the data unusable because the actual geometry (SHP) is missing.
For practical conversion, you cannot convert a .QIX file directly into an image or PDF. If your goal is to share the map data, you must locate the parent SHP file. From there, you can use QGIS or online converters to transform the dataset into web-friendly formats like GeoJSON and KML, or print-ready formats like PDF and SVG.
Convert.Guru analyzes your QIX file, detects the exact format, and lets you read the text inside.
Users also converted CPG, DBF, PRJ, ZIP, SPV, GPKG, SHZ and QGZ files.
If you want to convert QIX file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use QGIS or similar software from the "GIS Spatial Indexing" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to QIX, try QGIS or another comparable tool in the "GIS Spatial Indexing" 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 QIX converter.