if file is already uploaded, update its group_set,last_update and modified_by fields
if file is already uploaded, update its group_set,last_update and modified_by fields

gnowledge/gstudio,gnowledge/gstudio,makfire/gstudio,AvadootNachankar/gstudio,AvadootNachankar/gstudio,gnowledge/gstudio,gnowledge/gstudio,makfire/gstudio,makfire/gstudio,AvadootNachankar/gstudio,makfire/gstudio,AvadootNachankar/gstudio,gnowledge/gstudio