| ConvertToPdfAsync(Byte, CancellationToken) | Asynchronously converts an Excel document to a PDF byte array. The input must be a valid .xlsx file provided as a byte array. The resulting PDF content is returned as a byte array, which can be saved, streamed or transmitted as needed |
| ConvertToPdfAsync(String, CancellationToken) | Asynchronously converts an Excel file from the specified file path to a PDF byte array. The input file must be a valid .xlsx format document. The resulting PDF content is returned as a byte array, which can be saved to disk, sent over a network, or written directly to a response stream |