Each of these options and their caveats are described below.
The first two options require you to clone the repository to your computer first. You may do this on the command line or using a program such as SmartGit. After making changes to the files you will need to commit and push your changes to the server and then create a Pull Request to merge them to the `master` branch.
Alternately, you may [download the master branch as a zip file](https://git.door43.org/unfoldingWord/en_twl/archive/master.zip) and extract that locally. After editing you would need to use the upload file feature in DCS to get your changes ready for a Pull Request.
When you are done editing, click Save and then select “Use Text CSV Format” on the pop up dialogue. Note that even though it says CSV, it will use tab characters as the field separators.
**Note:** Other spreadsheet editors **should not** be used because they will add or remove quotation marks which will affect the entries negatively.
### Editing in a Text Editor
You may also use a regular text editor to make changes to the files.
**Note:** You must be careful not to delete or add any tab characters when editing with this method.
### Editing in DCS
If you only need to change a word or two, this may be the quickest way to make your change. See the [protected branch workflow](https://help.door43.org/en/knowledgebase/15-door43-content-service/docs/46-protected-branch-workflow) document for step by step instructions.
**Note:** You must be careful not to delete any tab characters when editing with this method.
The TWL are structured as TSV files to simplify importing and exporting into various formats for translation and presentation. This enables the tWLs to be keyed to the original Greek and Hebrew text instead of only a Gateway Language translation.
A Tab Separated Value (TSV) file is like a Comma Separated Value file except that the tab character is what divides the values instead of a comma. This makes it easier to include prose text in the files because many languages require the use of commas, single quotes, and double quotes in their sentences and paragraphs.
The TWL are structured as one file per book of the bible and encoded in TSV format, for example, `twl_GEN.tsv`. The six columns are `Reference`, `ID`, `Tags`, `OrigWords`, `Occurrence`, and `TWLink`.
* This is a useful way to unambiguously refer to links.
* An [RC link](http://resource-container.readthedocs.io/en/latest/linking.html) can resolve to a specific note like this: `rc://en/tn/help/tit/01/01/swi9`.
*`Tags`– (optional) any of `keyterm` or `name`, separated by `; ` if there's more than one
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