Supported import formats You can import data from several different file formats. Table 1. File formats Format Limitations CSV CSV files must comply with the proposed CSV standard in RFC4180. In particular, this means that double quotes may not appear inside fields. The first row of data in an imported CSV file becomes the header row and defines the columns for that import set. Excel Excel files must have the XLS extension. Excel files with the XLSX extension will produce an error. XML XML files must have a consistent XPath for each data row. ServiceNow can import data from the following external data sources. Table 2. External data sources Data Source Limitations JDBC Some network configurations may require a MID Server. LDAP LDAP imports require a valid transform map.