A PMDX file is a spreadsheet document created with the latest version of PlanMaker, a software that comes as part of SoftMaker Office. It stores data in cells in the form of rows and columns. Each cell can contain string, numbers, formulas, or other formatted data. PMDX files replaced the older version PMD files with the upgrade of PlanMaker. XLSX is the standard file format supported by PlanMaker and doesn’t need any conversion while opening these files with Microsoft Excel. PlanMaker also supports working with XLS files and convert these to other formats such as PDF.
PMDX File Format
PMDX files are stored to disc as binary files in proprietary file format and its specifications are not available publicly.