ICloud on Mac???

Dear Mr. Apple,

I have a question, I was trying to upload or update data file on page, Number, and another APPLE apps in ICloud on Macbook (2011 version and I forget which OS version began to have problem, but I think), it won't work well, so I replaced it to IPad... It seems that ICloud on Macbook has problem??? Please be sure check another OS program is be FINE!

Please be sure fix it well if there has any errors.

Thanks.

an Apple customer.