> For the complete documentation index, see [llms.txt](https://docs.enercalc.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.enercalc.com/e3d-user-manual/interface/toc175916526/toc161393735/toc161393741.md).

# Append File

How to append data from an existing ENERCALC 3D input file into the current model.

File > Append File command allows you to append data from an existing ENERCALC 3D input file to the current model. The following data will always be appended: materials, sections, thicknesses, geometry (nodes, members, shells or bricks), boundary conditions (supports, springs, moment releases, diaphragms etc.), concrete beam design criteria, concrete column design criteria and concrete plate design criteria. Loads, load cases and load combinations may be optionally appended. Other data such as analysis options and concrete model design criteria will not be appended. The input file does not need to use the same unit system as that of the current model. The program performs the unit conversion automatically.

It is important to point out that you should NOT use the default material, section or thickness in the input file as this could cause data conflicts if corresponding properties do not match those of the current model. Data conflict may also occur if materials, sections, thicknesses, load combinations etc. in the input file already exists in the current model. The program gives you warnings if such conditions occur. You should examine these warnings carefully and make corrections if necessary.

The following dialog (Figure 1.2) gives you more options for Append File command. The insertion point will add an offset to the nodal coordinates in the input file. You also have the option to give distinct node and element numbering for the appended data.

![](https://560001759-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FWNe8U6EBBBdUJHdb2X9G%2Fuploads%2Fgit-blob-95fe84ec04e4988cc875a9ca6449008fdcfcef39%2FFASTFR~1_img5.png?alt=media)


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