Click the "Select File" button above, and choose your PMDX file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert PMDX to another file type
To convert PMDX spreadsheets to another format, you need SoftMaker PlanMaker or other Spreadsheet software.
Convert a file to PMDX
To convert other file formats to the "SoftMaker Spreadsheet Document" file type, you need software like SoftMaker PlanMaker or a similar tool.
About PMDX files
The .PMDX file is a spreadsheet document created by SoftMaker PlanMaker, the spreadsheet application included in SoftMaker Office and FreeOffice. It stores tabular data, charts, macros, formatting, and mathematical formulas. Under the hood, this format is a ZIP archive containing structured XML files, heavily inspired by the Microsoft Office Open XML standard but customized for the SoftMaker ecosystem. The main problem with .PMDX files is poor cross-platform compatibility. It is a closed, proprietary extension. If you send a .PMDX file to a colleague or client, they will likely encounter an unreadable file error unless they also have SoftMaker software installed. Native support in Microsoft Excel or Google Sheets does not exist. You must convert these files to XLSX for Microsoft compatibility, CSV for raw database extraction, or PDF for read-only sharing. Note that highly complex, SoftMaker-specific macros or custom charts may break or look different after conversion. Because this format is niche, standard online converters often fail to process it. Usually, only the original software can properly read or export the data. However, convert.guru provides a pragmatic solution. Just drag and drop your file to identify the format, view it, and convert it when possible. Even if direct conversion fails, our analysis detects the supported underlying ZIP/XML format, allowing you to inspect the file and potentially extract raw text or internal content.
Convert.Guru analyzes your PMDX file, detects the exact format, and lets you read the text inside.
If you want to convert PMDX file to XLSX, XLS, XLSM, XLSB, ODS, CSV, TSV, TAB, DIF, SLK, WK1 or WK3, you can use SoftMaker PlanMaker or similar software from the "Spreadsheet Data 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 PMDX, try SoftMaker PlanMaker or another comparable tool in the "Spreadsheet Data Storage" category.
The PMDX 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 PMDX converter.