Giordano experiment file not loaded.

When loading the yaml file i get the following error message: 

```bash
Unrecognized table type for file: ../Benchmark-Models-PEtab/Benchmark-Models/Giordano_Nature2020/experimentalCondition_Giordano_Nature2020.tsv. Uploading as data matrix.
```

however after opening the conditions table is empty. 