GKX Converter

Extract text from GainsKeeper export files (GKX)


Drop or upload your .GKX file

How to extract text from your GKX file

  1. Click the "Select File" button above, and choose your GKX file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert GKX to another file type

To convert GKX export files to another format, you need Quicken or other Data software.

Convert a file to GKX

To convert other file formats to the "Financial Exchange" file type, you need software like Quicken or a similar tool.


About GKX files

The .GKX file extension represents a specialized tax-lot accounting data file generated by GainsKeeper, a solution provided by Wolters Kluwer. These files are engineered to transfer complex financial data - specifically capital gains, losses, cost basis adjustments, and wash sale calculations - from brokerage platforms or the GainsKeeper service into personal finance software like Quicken.

The main limitation with .GKX files is their lack of immediate human readability. While they function seamlessly as an interchange format for importing data into Quicken, users without this specific software cannot easily view or verify the tax data contained within. You cannot simply double-click a .GKX file to open it in standard office tools like Microsoft Excel or Google Sheets. This proprietary lock-in becomes a hurdle when you need to share tax data with a CPA who doesn't use Quicken, or when you wish to perform your own manual calculations in a spreadsheet.

To overcome these limitations, the most practical workflow is converting the .GKX file. For analysis and auditing, converting to CSV or XLSX is ideal, as it structures the transaction rows into columns for filtering and sorting. For archiving tax records or sending non-editable copies to an accountant, converting to PDF ensures the data remains immutable and universally viewable.

Convert.Guru analyzes your GKX file, detects the exact format, and lets you read the text inside.

Users also converted ZIX, QSM and QDF files.


FAQ

If you want to convert GKX file to SHP, KML, KMZ, GPX, GEOJSON, TOPOJSON, TIF, TIFF, ECW, SID, IMG or DEM, you can use Quicken or similar software from the "Tax-Lot Accounting Data" category. In the File menu, look for Save As… or Export….

To convert LAZ, KMZ, DTM, CSV, DEM, PRJ, LAS, GPX, DSM, SHP, DBF or KML files to GKX, try Quicken or another comparable tool in the "Tax-Lot Accounting Data" category.



The GKX Converter Story

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 GKX converter.