in the InterSystems management portal, I am in the lookup table viewer (interoperability>lookup Tables,  I would like to use import function to convert our existing table from other system to intersystems lookup table. 

so I converted our existing one like below and saved it as xxx.xml file locally.  when I try to import,  it says it is not a valid export file. 

my question is " what's the valid format for a file to be valid to use to import for lookup table?"

we are using cloud and I do not have access to the server file , I tried to export one to see what format the file would be but I do not

We are using the IRIS cloud. and I am working on a DTL .

so the source side timestamp is  local time for example 20240110134740,  I know it is a local time. so the requirement is I need to append the UTC at the end, like -0400 or -0500 depending on if it is daylight saving time.  

so is there function to return if current day is at daylight saving time, so I can decide if I need to append the -400 or -500? or a function to return the current UTC by location?