Salesforce reports can be exported in several formats, primarily:
CSV (Comma Separated Values) for data manipulation in spreadsheet applications like Excel.
Excel Format (.xlsx) for detailed data analysis.
PDF (Portable Document Format) for easily shareable and printable reports.
However, Word format (.docx) is not supported for exporting reports. Similarly, Excel format is .xlsx,
not .xIxs (a typo). Thus, among the options provided, only PDF is accurate for export formats
supported natively by Salesforce.
Reference from Salesforce Documentation:
Export Salesforce Reports
Salesforce Report Export Formats