agls

.aglsArcGIS Layers

Esri · 2000s

Developer
Esri
Category
GIS & Maps
MIME Type
application/vnd.esri.ags.layer-definition
First Released
2000s
Open Format
No
File Signature
<?xml version="1.0" encoding="utf-8"?>
At a Glance
.agls
ArcGIS Layers

An AGLS file is a map layer definition file used by Esri's ArcGIS software to store display settings and symbology for geographic data.

Reviewed on June 10, 2026
Compression
N/A (Metadata file)
Transparency
Yes (Layer transparency can be defined)
Editability
High (Within ArcGIS)
Best for
Layer styling and symbology

Key Features

  • Stores layer symbology and labeling rules.
  • References external geographic data sources.
  • Includes settings for transparency, outlines, and fills.
  • Facilitates consistent map visualization sharing.

Best For

  • Defining and saving complex symbology and labeling.
  • Maintaining cartographic consistency across maps.
  • Sharing visual map layer configurations within ArcGIS projects.
  • Quickly applying display styles to existing spatial data.

Less Ideal For

  • Storing raw geographic data (e.g., vector geometries, rasters).
  • Creating general-purpose map document files for multiple layers.
  • Interoperability outside the Esri ArcGIS environment.
  • Sharing data files themselves.

Common Use Cases

  • Saving custom symbology for a specific dataset.
  • Sharing map layer configurations with colleagues.
  • Defining how a web map layer should appear.
  • Quickly applying pre-defined styles to new data.

How to Open It

  1. Open ArcGIS Pro or ArcMap and use the 'Add Data' functionality, selecting the AGLS file.
  2. Drag and drop the AGLS file directly onto an open map in ArcGIS Pro or ArcMap.
  3. If the AGLS references valid data sources, it will load the layer with its defined symbology.

What is a .agls file?

AGLS files are essentially map layer definitions used primarily within Esri's ArcGIS ecosystem. They store information about how geographic data should be displayed, including symbology, labeling, and transparency settings, rather than the geographic data itself. These files act as a bridge between raw spatial datasets and their visual representation on a map. By linking to actual data sources, AGLS files allow users to quickly recreate complex map visualizations without needing to reconfigure every setting each time. They are crucial for sharing map configurations and maintaining consistent cartographic standards across projects.

Programs That Open .agls Files

PlatformProgram
WindowsArcGIS ProPaidOfficial
ArcMap (ArcGIS Desktop)PaidOfficial
macOSArcGIS ProPaidOfficial

How to Convert .agls Files

FormatMethod
.LYRXSave As Layer File in ArcGIS Pro
.LYRSave As Layer File in ArcMap

Common Problems with .agls Files

⚠️ Layer does not display or shows errors.
Verify that the referenced data source is accessible and the file path is correct within the AGLS file or ensure the data is present in the same directory.
⚠️ Symbology appears differently than expected.
Ensure you are opening the AGLS file in the same version of ArcGIS software it was created in, as compatibility can sometimes vary between versions.

Frequently Asked Questions

What's the difference between AGLS and LYRX files?

AGLS is an older format, while LYRX is the modern layer file format used in ArcGIS Pro. Both serve similar purposes of storing layer symbology and display settings, but LYRX is more comprehensive and preferred for newer projects.

Can I open an AGLS file without ArcGIS software?

No, AGLS files are proprietary to Esri's ArcGIS platform and cannot be directly opened or interpreted by other GIS or general software.

Does the AGLS file contain the map data itself?

No, an AGLS file only contains information about how to display geographic data; it does not contain the actual vector or raster data.

Technical Details

AGLS files are XML-based and contain metadata and configuration settings for a single map layer or a group of layers. They do not contain the actual geographic data but rather references to data sources (like shapefiles, geodatabases, or web services) and instructions on how to render them. This structure allows for flexible sharing of map aesthetics independent of the underlying data.

Did You Know?

AGLS files are a type of XML file, making their underlying structure human-readable to some extent.
They were commonly used in earlier versions of ArcGIS (like ArcMap) before the introduction of the more modern LYRX format in ArcGIS Pro.

Security Information

As AGLS files reference external data sources, ensure that you trust the source of the file and its referenced data to avoid potential security risks or malicious data.