Excel files with ArcGis and ArcGis Pro

There is an increasing co-work between ArcGis and Excel. Indeed, the information management is infinitely richer with a spreadsheet such as Excel than with an ArcGis tabular view.
It has always been possible to load an Excel table in ArcMap. But since version 10.2 there are two tools that allow you to create an ArcGis table from Excel and another that allows you to create an Excel table from an ArcGis table. These tools are also present in ArcGis Pro.

We will discuss how this works.

How to convey an Excel table to an ArcGis table We will work with an Excel file downloaded from the INSEE website, at http://www.insee.fr/en/ppp/databases/recensus/populations-legales/departement.asp ? dep = 29

What you have to know…

Excel to Table supports the input of Excel Workbook (.xlsx) and Microsoft Excel 5.0 / 95 (.xls) Workbook formats.

The tool assumes that the tabular data is sorted vertically. The first line is used for the field names of the output table. These field names can be renamed during the validation process to avoid errors or duplication of names. The empty columns between the data are kept and a generic field name is assigned to them (for example, field_4). In our example, we have to start by eliminating the title lines and keep only the data table with the field names row.

Each field must have a uniform data type. Supported data types include floating, text, date, and Boolean fields. However Boolean fields are stored as short paths. The example table has multiple sheets. In this case, do not forget to eliminate the title lines in all the sheets you want to use in ArcMap.   

How to import the Excel table You will find the Excel import and export commands in the Conversion Tools -> Excel toolbox  

The setting window opens:  

You specify the input Excel file.

You specify the output table. There you have two options. The ideal is a table in a geodatabase. You will have comprehensive field names as well as all the commands linked to the geodatabases SQL. The worst is a dbf table. If you choose this option, you will enter a table name in a directory (not in a geodatabase) and, most importantly, you should not forget to add the .dbf extension. If you don’t, it will not work. However, remember that dbf tables have field name length limits and a limited version of sql commands.

Tip: If you have not already done this, switch to geodatabase mode …

You select the sheet you want to import from the drop-down menu, and click OK You find your table in ArcMap:

How to convey an ArcGis table to an Excel table Now, we will discuss the opposite command: we will create an Excel table from our new ArcGis table.
To perform this action, we click on the other tool of the toolbox Data Management-> Excel-> Table to Excel

Easy peasy: input table and Excel workbook as output. We find an Excel table quite right:

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