When using ModelBuilder with a Shapefile selected as the data source type, certain characters with UTF-8 encoding (ie. character set) do not appear correctly in the preview window.
For example, the following image was taken from the ArcMap attributes table the Shapefile was exported from.
When that Shapefile is selected in ModelBuilder the characters appear incorrectly as shown below.
ModelBuilder does not currently support UTF-8 encoding for the Shapefile DBF file.The original standard for DBF files is defined with ISO8859-1 encoding.From ArcGIS 10.2 on, ESRI defaults to UTF-8 encoding.Feature request #797333 was created to support UTF-8 encoding in a future release.
Open the Shapefile and re-save it using "system" encoding. The Shapefile characters should display correctly after doing this.
There are multiple applications that have this capability, including QGIS and ArcCatalog.
1. Add the Shapefile layer.
2. Right-click on the layer and select properties.
3. Select the General tab and set "Data source encoding" to UTF-8 > Apply > OK.
4. Right-click on the layer and select save as.
5. Enter a file name and set the encoding to system > OK.
Click here for instructions to export to a Shapefile.
Make sure that the DBF Unicode Format is set to "None".
After a new copy of the Shapefile is created with the "system" encoding the characters should display correctly in ModelBuilder and QGIS, however ArcMap will no longer display the characters correctly. To fix this, do the following.
Importing external data using ModelBuilder - Building and updating
Converting a geodatabase to shapefiles