Rocket Chat error save file format xlsx,xls,doc when change name file

Dear support Rocket chat!
II’m having a problem when using rocket chat that when I download a file in word and excel format sent to me by someone else, when I save it, I can’t open them if I don’t set the extension for that file.
This happened while downloading I tried to rename the file.
Is there a setting I’ve overlooked on my rocket chat so I don’t have to do it manually like that?
Please help me.
Many thanks.
File format
Save as when change name file


please, provide the required template.

We need to at least know the versions you are running, otherwise, we can’t help you :frowning:

I fixed it by not changing the file name when downloading to my computer. thank you!

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