I am trying to import some contents into a module. The files are uploaded to the location Portals/0/templates. However, these files are not being listed in the File drop-down in the Import Content Option

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Go to Pages >> Select the edit icon for a page.

On the page to edit, select the settings icon seen to the left >> Select Import Content.

Here No contents will be displayed in the File dropdown ( - this is what will be seen here) no matter which folder you choose from the Folder dropdown.
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I have tried the following.

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-Synchronised the folders and sub-folders

-Confirmed that the file extensions are listed under allowable file extension ("templates and xml" which required here)

-Checked and confirmed "Portals/0/templates" have the required permissions.
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Any help regarding this would be much appreciated.