Unable to fetch schema from Excel file present in SFTP server

Hi,
i am trying to make a connection using following
Source: File (Storage Provider - SFTP)
Destination: Redshift

My Source & destination are configured correctly but when i try to make a connection it becomes unable to fetch the schema for the specified excel file.

Here is my source configuration:

Here is my sftp server having the same file:

Here is the sample file that i used
housing.xls.txt (22.5 KB)
P.s. Please remove the extension .txt from above file before using it, I just added it so that it can be uploaded here in Topic

Hey could you help me with the response for that API call?

You can go to network tab and then select the failed response for the discover API