You can export a glossary to an XLSX file. To do this, click the Download button on the glossary page and select the destination for saving the export file.
The exported file will appear in the folder you specified. Note that you’re free to edit it and import it back to Smartcat.
Note: Since Smartcat requires the Excel file you use to add existing data to be in a specific format, exporting the glossary can be used to generate a template to import that data. Create the glossary structure you want to use (languages, fields), add one entry and download the Excel file. Then simply populate that file with your data and upload the file back to Smartcat. The file will be in the proper format then.