How to allow only xml/xlsx/xlam file extensions while attaching a file in catalog form

[shaik riyaz1]

this.angular.element("#sc_cat_item").scope().attachments.length
with above script I am able to retrieve the count of attachments before submitting the form but how to get the file name and validate their extensions before submitting the form

[Neeraj31]

@shaik riyaz1 Refer below post

https://www.servicenow.com/community/developer-forum/how-to-restrict-user-to-add-specific-file-exten...

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