FileMaker script
File type: Source code and script file
The .xmss file is a FileMaker script file. It contains instructions for automating tasks in a FileMaker database.
The file belongs to FileMaker Pro and is not itself a FileMaker database file.
File type category:
Source code and script file
Date updated: October 4, 2026
.xmss files store scripts created for FileMaker Pro, the relational database application from FileMaker, now part of Claris. A script consists of actions that FileMaker Pro can perform in sequence, such as finding records, modifying data, or controlling layouts.
The file is used with a FileMaker Pro database rather than as a standalone application. FileMaker Pro is available for Microsoft Windows and Apple macOS, formerly called Mac OS X. To use the script, it must be opened or imported in FileMaker Pro and associated with a database.
Open the .xmss file with FileMaker Pro on Windows or macOS. Use FileMaker Pro's command for opening or importing a FileMaker script if double-clicking the file does not open it.
The script is intended to be used within a FileMaker Pro database, where its steps can be viewed and edited.
There is no usual need to convert a .xmss file to another file format. Import it into FileMaker Pro and save the script in a FileMaker Pro database.
To use the script in another database or scripting system, its steps generally need to be copied or recreated rather than converted automatically.
Software applications that handle other tasks involving xmss files:
Microsoft Windows
Apple macOS / Mac OS X
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