XnView Software

I find working with file lists as text files to be an incredibly powerful paradigm. I have no idea why it's not more common, I'm stuck with a buggy tool (Oscar's Renamer) for everything I do.
Ditto. I use (and recommend) these freeware utilities:

Scarabée Software: Siren
Siren renames, moves, and copies files using an expression. A lot of information associated to a file can be used: name, extension, dates, selection number... Other information is extracted from it according to its type: audio, video, image (standard and raw), exif, iptc, office document, pdf, html, executable, dv avi, karaoke, torrent, and url. Many different operations can be performed on character strings. A complete directory tree can be processed. Images can be viewed. For example, to change a file name to uppercase with the mp3 extension, the expression can be: %ub.mp3. Languages: English and French.
Kjetil L. Nygård: Chgname
Chgname is a fast, comprehensive and very flexible file management tool, which changes the file NAMES, all -DATES, all -TIMES and -ATTRIBUTES. The main task for Chgname is to enumerate large number of files with similar names (like name001.ext, name002.ext). Chgname also changes CHARACTER CASE of file names for easy transportation between operating systems. Further, Chgname shows a preview of all the changes. Chgname is made very flexible by a wildcard system and many other options for composing file names. In addition lists of filenames may be edited like text files for fast and efficient editing for all kinds of filenames. Chgname even has the capacity to set all file date- and time stamps progressivly (created, modified, accessed). Files are imported into a file list through an open dialogue box, drag-and-drop form the Explorer, through a search function which includes searching through subdirectories or through the command-line. Command-line parameters provide the means for full automation. The files are either moved into one directory, left where they are or copied into one single directory. Chgname is ideal for everyone who have demanding tasks which includes keeping order in large number of for example data files.
Jim Willsher: Bulk Rename Utility
Bulk Rename Utility is a utility which allows you to easily rename files and directories, based upon extemely flexible criteria. Add date-stamps, replace numbers, insert strings, convert case, add auto-numbers, process folders and subfolders....plus loads more!
Daniel Groß: SpeedRenamer
Ein Programm um schnell viele Dateien umzubenennen. Das Prinzip beruht darauf, daß die Dateinamen in einem Notepad dargestellt werden. Das bietet viele Möglichkeiten bequem Änderungen an den Dateinamen vorzunehmen. Sind alle Änderungen ausgeführt, genügt ein Klick und alle Dateien werden umbenannt. Außer den Notepad-typischen Funktionen, wie Kopieren, Einfügen, Suchen und Ersetzen stehen noch jede Menge Sonderfunktionen zu Verfügung.

Welcome to the forum, Mark (-:

Is there any way that I can use this excelsheet combined with XnView to solve my problem? I really don't want to rename each image individually :D

ren
Total Commander: Multi-Rename Tool → Load names from file
Directory Opus: Advanced Rename → Paste new names from clipboard
Flash Renamer
Oscar's Renamer
SpeedRenamer
Chgname