What is the CMS file format?
.cms is a script file associated with CaseMap software developed by LexisNexis. CMS files are exported automation scripts from the CaseMap case database - each exported .cms file is a portable script that users can share and import into another CaseMap case. CaseMap supports scripting logic using a VBScript-like macro language, allowing users to add new features or automate repetitive and routine tasks. Writing CMS scripts requires working knowledge of the scripting syntax supported by CaseMap. All created scripts are stored within a dedicated CaseMap case database, but .cms files are used for importing and exporting scripts between cases or users.
CaseMap is a dashboard tool for aggregating various data from different files and sources. It allows users to sort, split, and organize case data on a custom timeline. It also offers an advanced search function that scans data searching for keywords. CaseMap functionality can be extended using custom scripts saved as .cms files, which can automate bulk edits, reporting, flagging issues, and other repetitive legal case-management workflows.
Security & safety
RISK: LOWA CaseMap .cms script only executes within CaseMap and cannot run as an independent program or harm the OS. However, a script from an untrusted source could manipulate your CaseMap case data (deleting records, bulk modifications) if imported and run blindly. Treat .cms files from unknown sources with the same care as any macro: only import scripts from colleagues or vendors you trust, and review the script's description in CaseMap before running it. No reports of CaseMap-script-based malware exist; risk is primarily data integrity rather than OS security.
Format details
in a nutshell- CryptoMS encrypted file - Some encryption tools use .cms as the container for CMS/PKCS#7 cryptographic message syntax data.
- Content Management System export/template file - Various CMS platforms use .cms as a generic export or template extension; format and developer vary.
- Joomla / web CMS script - Some web servers and CMS platforms (Joomla, PHP-based) use .cms for server-side script or template files.
Programs that open CMS files
Windows1 app
CaseMap
Paid In CaseMap, go to the Scripts panel or menu, choose Import Script, select the .cms file. The script is then listed in the case and can be run on demand. Technical details
deep spec| Format type | Proprietary CaseMap script container (binary/text hybrid) |
| Encoding | Proprietary internal format; script logic uses a VBScript-like macro language |
| Container | CaseMap case script container - stored within the CaseMap case database; exported as a standalone .cms file |
| Compression | None (small script definition file) |
| Encryption | None documented; security relies on CaseMap's own access controls |
| Typical size | A few KB to tens of KB |
| Script logic | Automation commands, field references, and conditional logic for legal case management |
| Use cases | Bulk edits, reporting, flagging issues, sorting, and custom workflows in a CaseMap case database |
| Execution context | Not a standalone executable; only meaningful within CaseMap |
| Import/export | Exported from a CaseMap case database; re-imported into any CaseMap case by the user |
| Format versioning | Script format tied to the CaseMap application version; CaseMap 14 is current as of 2026 |
| Associated OS | Windows only |
| Released | CaseMap (2000s; LexisNexis CaseMap 10+ era) |
| Latest version | CaseMap 14 (current as of 2026); script format tied to application version |
| Specification | www.lexisnexis.com |
CMS conversions
Community Q&A
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