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I'd like to search for an email that contains an excel attachment. I'm using outlook.

I know I can do


but this matches any attachment type

I've also tried,


but this doesn't work

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up vote 8 down vote accepted

It's a little backwards, but you can do this with

xlsx hasattachment:true
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This worked well. I did however get one false positive though, but it has reduced my searching time down a lot. Thanks – Nathan Koop Oct 19 '09 at 17:16

I just tried this and it works well:

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You can search for emails with (for example) Excel spreadsheet attachments by using the following:


This is documented in the Advanced Search page.

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Try this - it's just slightly different than what you tried and it works for me. Via the documentation.

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