Under Community Review

One alternative process is:

Open such files (bilingual Excel, bilingual CSV etc.) in the Editor, or batch-prepare them to get SDXLIFF files.

Import the SDLXLIFF into TM.

This is less of an effort than to e.g. convert to TMX I would think.

But would be great to see an app for this that automates the above steps.

Support importing of Excel files or other TMs directly

Currently TM import supports the following file types:

TMX files
SDXLIFF files
TTX files
ITD files
SDLALIGN files

It would be great if bilingual Excel files and SDLTM (direct import of other TMs) would be possible.*

* I know both these types can be converted to TMX, but it would save everyone that extra step ;)