# A Master Excel Specification

**URL:** <https://forum.certara.com/t/a-master-excel-specification/1391>\
**Category:** Define.xml\
**Created:** [August 21, 2019, 8:02pm UTC](https://forum.certara.com/t/a-master-excel-specification/1391 "2019-08-21T20:02:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Trevor\_Mankus](https://sea1.discourse-cdn.com/certara/user_avatar/forum.certara.com/trevor_mankus/32/2650_2.png) [@Trevor\_Mankus](https://forum.certara.com/u/Trevor_Mankus)\
**Post date:** [August 22, 2019, 2:36pm UTC](https://forum.certara.com/t/a-master-excel-specification/1391/1 "2019-08-22T14:36:58Z")

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Hi,

Are you a CDISC member? If so, you could try looking through the [CDISC Library Archives](https://www.cdisc.org/members-only/cdisc-library-archives) to see if the metadata you are looking for is already available.

Thanks,

Trevor

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**Author:** ![system](https://sea1.discourse-cdn.com/certara/user_avatar/forum.certara.com/system/32/17_2.png) [@system](https://forum.certara.com/u/system)\
**Post date:** [August 26, 2019, 4:03pm UTC](https://forum.certara.com/t/a-master-excel-specification/1391/2 "2019-08-26T16:03:31Z")

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Thank you

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<div class="post-metadata">

**Author:** ![system](https://sea1.discourse-cdn.com/certara/user_avatar/forum.certara.com/system/32/17_2.png) [@system](https://forum.certara.com/u/system)\
**Post date:** [August 21, 2019, 8:02pm UTC](https://forum.certara.com/t/a-master-excel-specification/1391/3 "2019-08-21T20:02:25Z")

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Hi,

I wanted to put together a Master Excel Spec for all the domains that reflects all the domains and variables as they are available in SDTM IG tables. So this master spec file could then be used by the spec writers as a starting point, instead of feeding in the XPTs into P21 Community and getting the excel specs.

Then figured it may already exist somewhere and would ask in this forum. Please advise. Thanks in advance.