[media-types] [IANA #1444028] application/vnd.zoho.s preadsheetml.sheet registration request

Hi Darrel,

Resending this response from February 25th. #2 of 2.

thanks,
Amanda

On Wed Feb 25 01:44:58 2026, amanda.baber wrote:
> Hi Darrel,
> 
> Similar response here:
> 
> ===
> 
> It is similar to the risks a xlsx file received from a sender. The
> xlsx file can contain
> any malware, but it will not be executed by the Excel program.
> 
> Similarly the zsheet file received from a sender can contain any
> malware, but it will
> not be executed by the Zoho Sheet program.
> 
> Please get back to us for any clarifications in this regard.
> 
> ===
> 
> Does that work? Should those first two paragraphs be added to the end
> of the security considerations section, if they confirm that this is
> their intention?
> 
> We'll remove the extra "vnd."
> 
> thanks,
> Amanda
> 
> On Sat Feb 21 21:30:43 2026, [email protected] wrote:
> > Same comment as with the other zoho registration. There is a double
> > vnd. In the subtype name.
> >
> > Darrel
> > ________________________________
> > From: Amanda Baber via RT <[email protected]>
> > Sent: Friday, February 20, 2026 9:29 PM
> > Cc: [email protected] <[email protected]>; Darrel Miller
> > <[email protected]>
> > Subject: [IANA #1444028] application/vnd.zoho.spreadsheetml.sheet
> > registration request
> >
> > Hi Darrel,
> >
> > Sending a reminder for this request from February 13th.
> >
> > thanks,
> > Amanda
> >
> > On Fri Feb 13 18:57:59 2026, amanda.baber wrote:
> > > Hi Darrel,
> > >
> > > We've received another request from zoho (in addition to the one
> > > that
> > > came in Wednesday). Would it be possible to review this by February
> > > 27th?
> > >
> > > I'm assigning this one to you because you have the existing zoho
> > > request, but I know the queue is unusually heavy at the moment, so
> > > let
> > > me know if I should ask Murray to take this one instead.
> > >
> > > As noted earlier, they have received your recommendation that they
> > > publish a spec.
> > >
> > > thanks,
> > > Amanda
> > >
> > > =====
> > >
> > > Name: Manivannan Subburaj
> > >
> > > Email: [email protected]
> > >
> > > Media type name: application
> > >
> > > Media subtype name: vnd.vnd.zoho.spreadsheetml.sheet
> > >
> > > Required parameters: N/A
> > >
> > > Optional parameters: N/A
> > >
> > > Encoding considerations: binary
> > >
> > > Security considerations: This sub-type is intended for spreadsheet
> > > documents and is represented as a ZIP container comprising multiple
> > > structured components, some of which are XML files.
> > >
> > > A document of this sub-type does not contain macros. A document of
> > > this sub-type may contain executable contents other than Macros or
> > > Embedded UI Controls, since the underlying ZIP, allow such
> > > contents.
> > >
> > > A .zsheet file may include formulas, embedded objects, non-
> > > encrypted
> > > personal information or links to external resources. Applications
> > > should consider the security implications of processing such
> > > content
> > > and of resolving external references.
> > > There are no mechanisms in .zsheet spreadsheet to verify the
> > > integrity
> > > of spreadsheets (e.g. digital signatures). Users have to rely on
> > > external applications, should such integrity verification be
> > > required.
> > >
> > > As with most application types this data is intended for
> > > interpretation by a program that understands the data on the
> > > recipient's system. Recipients need to understand that they are at
> > > the
> > > "mercy" of the sender, when receiving this type of data, since data
> > > will be executed on their system, and the security of their
> > > machines
> > > can be violated.
> > >
> > > Interoperability considerations: None
> > >
> > > Published specification: None
> > >
> > > Applications which use this media: Zoho Sheet
> > >
> > > Fragment identifier considerations: None
> > >
> > > Restrictions on usage: None
> > >
> > > Provisional registration? (standards tree only): No
> > >
> > > Additional information:
> > >
> > > 1. Deprecated alias names for this type: None
> > > 2. Magic number(s): 50 4B 03 04 as in ZIP
> > > 3. File extension(s): zsheet
> > > 4. Macintosh file type code: No specified Macintosh file type
> > > code(s)
> > > for Zoho Sheet.
> > > 5. Object Identifiers: None
> > >
> > > General Comments:
> > >
> > > Person to contact for further information:
> > >
> > > 1. Name: Sankar, Srikanth
> > > 2. Email: [email protected], [email protected]
> > >
> > > Intended usage: COMMON
> > >
> > > Author/Change controller: [email protected]

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