diff --git a/docs/grid_exchange_formats/index.md b/docs/grid_exchange_formats/index.md
index 042481e05be..04f925f5c67 100644
--- a/docs/grid_exchange_formats/index.md
+++ b/docs/grid_exchange_formats/index.md
@@ -1,19 +1,36 @@
 # Grid exchange formats
 
-This section is dedicated to the description of the various grid formats available in PowSyBl. While IIDM is at the core 
-of it, it is possible to import or export data in a number of formats that may be dedicated to European data exchanges 
+This section is dedicated to the description of the various grid formats available in PowSyBl. While IIDM is at the core
+of it, it is possible to import and/or export data in a number of formats that may be dedicated to European data
+exchanges
 or network simulation via different tools: check them out below.
 
+| Data format                                 | description                                                                                                  |                  import                   |                  export                   |
+|---------------------------------------------|--------------------------------------------------------------------------------------------------------------|:-----------------------------------------:|:-----------------------------------------:|
+| [CIM-CGMES](cgmes/index.md)                 | the standard format for European grid data exchange                                                          | <span style="color:green">&#x2714;</span> | <span style="color:green">&#x2714;</span> |
+| [UCTE-DEF](ucte/index.md)                   | the legacy format for European grid data exchange                                                            | <span style="color:green">&#x2714;</span> | <span style="color:red">&#x2718;</span>*  |
+| [IIDM](iidm/index.md) (XIIDM, JIIDM, BIIDM) | the internal data model of PowSyBl in a XML / JSON / binary format                                           | <span style="color:green">&#x2714;</span> | <span style="color:green">&#x2714;</span> |
+| [IEEE-CDF](ieee/index.md)                   | a IEEE standard format                                                                                       | <span style="color:green">&#x2714;</span> |  <span style="color:red">&#x2718;</span>  |
+| [PSS®E](psse/index.md)                      | the format for power flow analysis on Siemens PSS®E software                                                 | <span style="color:green">&#x2714;</span> | <span style="color:red">&#x2718;</span>*  |
+| PowerFactory                                | the format for DIgSILENT PowerFactory software                                                               | <span style="color:green">&#x2714;</span> |  <span style="color:red">&#x2718;</span>  |
+| [Matpower](matpower/index.md)               | the format for the free and open-source Matlab toolbox dedicated to power system simulation and optimization | <span style="color:green">&#x2714;</span> |  <span style="color:red">&#x2718;</span>  |
+| [AMPL](ampl/index.md)                       | a data separated value format easy to parse with AMPL                                                        |  <span style="color:red">&#x2718;</span>  | <span style="color:green">&#x2714;</span> |
+
+\* Note that updated export is available, that is, export is possible if the file was imported with the same format.
+For instance, if you import a UCTE-DEF file in powsybl you can update some elements and then export it back to UCTE-DEF
+format, but you cannot export to UCTE-DEF format a file imported from another format.
+
 ```{toctree}
 ---
-maxdepth: 2
+maxdepth: 1
+hidden: true
 ---
 
-ampl/index.md
 cgmes/index.md
+ucte/index.md
+iidm/index.md
 ieee/ieee.md
 matpower/index.md
 psse/index.md
-ucte/index.md
-iidm/index.md
+ampl/index.md
 ```