What file type is required when uploading a spreadsheet using the Guided Application Creator?

When using the Guided Application Creator in ServiceNow to upload a spreadsheet, the necessary file type is XLSX. This format is widely utilized within modern applications and provides a structured way to store data in a tabular form, allowing for the inclusion of multiple sheets, columns, and advanced features such as formulas and formatting.

XLSX is an updated version of the older XLS file format, designed for better compatibility and efficiency in data handling. The adoption of this format reflects ServiceNow's emphasis on using contemporary and widely supported standards in their functionalities. Other formats like CSV and TXT do allow for data imports, but they do not provide the same level of features and structured data organization that XLSX offers when used within the Guided Application Creator.

Thus, when selecting the appropriate file type to upload a spreadsheet in this context, XLSX is the required format for ensuring optimal compatibility and functionality within ServiceNow applications.