All Discussions > Steam Forums > Help and Tips > Topic Details
Espire 27 Nov, 2012 @ 7:19pm
What is appmanifest?
i was checking my files on the computer, then i bumped on to a file named appmanifest_99900.acf

what is that thing anyways?
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Showing 1-10 of 10 comments
Felix 27 Nov, 2012 @ 7:41pm 
I imagine it's for Spiral Knights, as the Spiral Knights appID on Steam is 99900.
#1
Espire 27 Nov, 2012 @ 7:43pm 
oh i thought that means, a file that hackers use.... thx
Last edited by Espire; 27 Nov, 2012 @ 7:43pm
#2
DarkCrystalMethod 27 Nov, 2012 @ 7:46pm 
Open it in notepad. Looks like it saves the last time it was updated among other things. Try not to alter it.
#3
cSg|mc-Hotsauce 22 Sep, 2018 @ 8:24pm 
Originally posted by Rabbitking78:
Hi, is it safe to share these Appmanifest_570.acf files? Someone said his is corrupted and he would save a lot of time if someone just sent him a copy.

I saw there was a "last owner" number in the text file so I wasn't sure if some personal information were into it.

Why would you need to share the Dota 2 appmanifest file?

:qr:
#4
Legos1819 8 Oct, 2020 @ 3:47pm 
Hi I accidentally made that ACF file be run by chrome any help how to restore it?
#5
Magma Dragoon 8 Oct, 2020 @ 3:50pm 
Originally posted by Legos1819:
Hi I accidentally made that ACF file be run by chrome any help how to restore it?
You didn't change the file just the program Windows tries to open it with, you don't need to do anything
#6
MonkeHotDogs 7 Jan, 2021 @ 6:58pm 
hey I downloaded some random games a while ago but I dont know which manifests are which to delete or does steam automatically delete them when you uninstall it
#7
Phantom 7 Jan, 2021 @ 7:01pm 
Originally posted by GoMinatoOdama (Rasengan):
hey I downloaded some random games a while ago but I dont know which manifests are which to delete or does steam automatically delete them when you uninstall it

Why do you want to tamper with ACF files to begin with?

You can view the numbers, they're basically appIDs, then query it yourself.
#8
Kaspa173 6 Jul, 2022 @ 6:10am 
Originally posted by Magma Dragoon:
Originally posted by Legos1819:
Hi I accidentally made that ACF file be run by chrome any help how to restore it?
You didn't change the file just the program Windows tries to open it with, you don't need to do anything

problem its still not fixed i cant open any thing now :crtstressed:
#9
ChoboUnjeon 18 Mar, 2023 @ 8:50pm 
Originally posted by Kaspa173:
Originally posted by Magma Dragoon:
You didn't change the file just the program Windows tries to open it with, you don't need to do anything

problem its still not fixed i cant open any thing now :crtstressed:

if you're on windows 10, highlight the acf file on file explorer and click the down arrow next to the "open" button on the toolbar, then click "choose app" or "open with another app" smth like that
#10
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All Discussions > Steam Forums > Help and Tips > Topic Details
Date Posted: 27 Nov, 2012 @ 7:19pm
Posts: 10
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