Can you store data as pandas HDFStore and open them / perform i/o using pytables? The reason this question comes up is because I am currently storing data as 

```
pd.HDFStore('Filename',mode='a')
store.append(data)

```

However, as i understand pandas doesn't support updating records so much. I have a usecase where I have to update 5% of the data daily. Would pd.io.pytables work? if so I found no documentation on this? Pytables has a lot of documentation but i am not sure if i can open the file / update without opening using pytables when i didnt use pytables to save the file initially?