> For the complete documentation index, see [llms.txt](https://docs.intrepidcs.com/vspy-3-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.intrepidcs.com/vspy-3-documentation/vehicle-spy-main-menus/main-menu-spy-networks/message-editor.md).

# Message Editor

Vehicle communications involve [networks](/vspy-3-documentation/vehicle-spy-main-menus/main-menu-spy-networks/networks.md) of ECUs (or nodes) exchanging messages filled with signals. Network Databases are applied to each physical network to organize all of that data being exchanged.\
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The [Messages Editor](/vspy-3-documentation/vehicle-spy-main-menus/main-menu-spy-networks/message-editor/messages-editor-overview.md) provides a spreadsheet view of the network databases currently being applied to the networks. The editor also supports the creation of databases containing [Receive and Transmit](/vspy-3-documentation/vehicle-spy-main-menus/main-menu-spy-networks/message-editor/messages-editor-receive-transmit-and-database-tables.md) messages and signals.\
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All messages and [signals](/vspy-3-documentation/vehicle-spy-main-menus/main-menu-spy-networks/message-editor/message-signals.md) identified in the Messages Editor are visible in the [Messages](/vspy-3-documentation/vehicle-spy-main-menus/main-menu-spy-networks/messages-view.md) view. Once identified, these messages and signals can also be accessed for filters, function blocks, graphs, and other features via the [Expression Builder](/vspy-3-documentation/shared-features-in-vehicle-spy/shared-features-expression-builder.md).


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