I should think that these Wills abtracts are coming from the link I sent which is at the Wiltshire & Swindon RO.
Not so - Nick Hidden's site contains a selection of Berkshire wills from various sources - the common factor being that they relate to the Hungerford area. However, it should be noted that this is nothing like a complete index to Berkshire wills.
Nick's father Norman was a avid historian of the area and produced, amongst other things, a transcript of the Hungerford PRs. Hungerford includes the manor of Hidden - hence his interest in the area.
There are two published indexes covering two different time periods, the one by Phillemore covering 1508-1652 and published in1893 is available as a facsimile CD. The other is from the British Record Society and covers 1653-1710.
The BRO are currently trying to re-index the early wills as the Phillimore edition is somewhat unreliable - not least because the catalogue numbering is totally different today.