Translating SDL Package in Wordfast and Creating SDL Return Package in CafeTran

This week, I had to translate an SDL package from my client. I usually receive the packages from this client and don't have any problems with translating/editing using CafeTran in my High Sierra operating system. This package was different. All files acted as locked. I was not able to open any unlocked segments for translation.

Since I don't use a PC and SDL Trados any longer, I had to come up with an ingenious solution and combine two software to accomplish my task.

I decided to open and work on the package in Wordfast. But Wordfast does not create a return package required for this delivery. My goal was to save the translated file and open it in CafeTran for the creation of SDL return package.

Having try ed various ways of saving the project, I came up with the solution described below. The package was delivered yesterday. And today, my client confirmed receipt without any problems.

Here is the method:


a) Download and open zip file from the client. Explore the folders within.

b) Find the folder that contains the SDL package (with extension .sdlppx).

This folder also contains another folder (Project Name here).

c) Open the folder Project Name. Inside the folder, you will find a SDL Trados project file Project Name.sdlproj and an en-US folder with the individual *.sdlxliff documents contained within the package.

SDL Trados project folder



a) Selecting Projects --> Import SDL Package does not work in my latest version of Wordfast Pro 5 working in my OS High Sierra. Instead, I drag the *.sdlppx file and drop it anywhere in Wordfast.

b) An Import Package wizard opens. t already has the package source folder, the source and target languages selected, the project name, and a suggested location in my directory.

Import Pachage Wizard

c) Change location of the new project (if necessary).

d) Open the project files and work on the project as usual.


a) Create a temporary folder where all translated files will be saved. Call it Export.

Export Folder


a) When the work is completed, all translated files remain opened. Select a file and click on Save File As Translated.

Save as Translated

b) Select folder Export and press Save. The file will be saved with the additional “_en-US” at the end of the file name.

c) Close the saved file and move on to the next until all filed are saved as translated in the Export folder.


a) In the project folder, open the en-US folder that contains all .sdlxliff files. These files are the original untranslated files of the SDL package.

b) Copy file names one-by-one and rename the corresponding files in the Export folder paying careful attention to match the files. Alternatively, remove the “_en-US” addition from the files in Export folder.

c) Move all files from Export folder to en-US folder with the original project files. Replace old files with new. Now the SDL package has translated files. The file with .sdlppx extension will now point to the translated and replaced .sdlxliff files in en-US folder with the same corresponding names as the originals.

Replaced project files.


a) Drag and drop the .sdlppx file anywhere in CafeTran.

SDL package file.

b) The package will open with all translated files. (The file names are blurred in the image below).

List of documents in CafeTran

c) Select documents for viewing by clicking on “Documents” button (the book).

d) Highlight the desired document and click on the arrow.CafeTran arrows

e) After all documents are verified, export the return project by selecting: Project → Export and exchange → To Package…

Creating SDL return package in CafeTran

f) Select Return package (*.sdlrpx) (button on the left).

Return package

g) Select location and click Save.

The SDL return package is ready for delivery.