When I read row from Excel I get a response in JSON:

```
body: {
    "1": "",
    "2": "X",
    "3": "Y",
    "4": "",
    ...
}

```

One row represents one year - 365 days where each day may contain some one-letter info (X, Y, Z..) or `""` - the problem is that now I have to access all 365 days which takes quite a long time.

I would need to access only those which `!= ""`, is there any possibility how to do it? Thanks

[![enter image description here](https://i.stack.imgur.com/LqVHK.png)](https://i.stack.imgur.com/LqVHK.png)