The XL functions in our MBS Filemaker Plugin are based on LibXL, a powerful library to handle Excel files.
You'll need your own license for LibXL. Order here for Windows, for Linux, for Mac or for enterprises the cross-platform license.
You can usually download latest libxl library from their website and use it with our plugins.
More downloads with license, Windows 32-bit library and changelog.
Demo Mode: Unless you have a LibXL license, the plugin will write banner in first row of each spreadsheet and it will be able to read only 100 cells (first row is unavailable).