I spoke to a lady at the CAA last week, so I don't have this in writing!
The CAA will not accept any computer disks (viral worries) making the submission of electronic / digitised logbooks tricky.
She was interested that I had gone to the trouble of putting my flights into a spreadsheet and proffered the following information; As long as the printouts comply with article 28 of the ANO then the document will be accepted.
Click Here
I did ask about approved software before I was given the answers above.
Now, has anyone got to grips with Microsoft Access?
Smirky.